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Onecom Trustpilot Reviews: What 13,000+ Customers Really Say

Onecom Trustpilot Reviews: What 13,000+ Customers Really Say

More Than 13,000 Reviews Tell a Story

Onecom has accumulated over 13,000 reviews on Trustpilot. That is an enormous number. To put it in context, most business telecoms providers have hundreds, maybe low thousands. The sheer volume of Onecom reviews demands attention, and so do the patterns within them.

We are Compare The Networks, an independent, OFCOM-regulated business telecoms comparison service operating since 2008. We are not here to tell you what to think about Onecom. We are here to break down what their Trustpilot reviews actually say, highlight the themes, and let you draw your own conclusions.

The Overall Picture

Onecom's Trustpilot profile shows a mix of ratings, but two clusters stand out: a large number of 5-star reviews and a significant number of 1-star reviews. The middle ground (2, 3, and 4 stars) is comparatively sparse.

This polarised distribution is worth examining. In most businesses, you would expect a bell curve — some very happy customers, some very unhappy ones, and the majority somewhere in between. When the distribution is heavily weighted at both extremes, it suggests different experiences for different customer segments, or potentially different motivations for leaving reviews.

What the 1-Star Reviews Say

The 1-star reviews on Trustpilot follow remarkably consistent themes. These are not isolated incidents — the same complaints appear hundreds of times across different reviewers.

Theme 1: Misselling During the Sales Call

The most common complaint. Reviewers describe:

  • Being signed up to contracts where the full pricing was not clear
  • Terms and conditions being read quickly during the call
  • Introductory prices being emphasised while post-discount prices were downplayed
  • Being told services were "free" that later appeared as charges
  • Not being informed about the no cooling-off period for business contracts

Representative quotes from public reviews include statements like: "The salesperson told me 25 pounds a month. After 18 months it went to 80 pounds. Nobody mentioned this during the call."

Theme 2: Price Increases After Discount Period

Closely related to misselling, this theme focuses specifically on the financial impact:

  • Bills doubling or tripling after 17-18 months
  • Total contract costs being far higher than customers expected
  • The only option to reduce the price being to re-sign for another 36 months
  • Feeling trapped between paying inflated prices and paying early termination fees

Theme 3: Poor Post-Sale Customer Service

A stark contrast to the sales experience:

  • Difficulty reaching customer service by phone
  • Long wait times when calling
  • Emails not responded to promptly
  • Account managers changing frequently or becoming unreachable
  • Problems taking weeks or months to resolve
  • A general feeling that once the contract is signed, the company loses interest

Theme 4: Add-On Charges

Customers discovering charges on their bill that they did not expect:

  • Services described as "free" or "included" during the sales call being charged
  • Insurance or protection plans appearing as line items
  • Additional services that the customer says they did not agree to
  • Difficulty getting these charges removed

Theme 5: Difficulty Leaving

When customers try to end their relationship with Onecom:

  • High early termination fees
  • Retention teams using high-pressure tactics
  • PAC code requests being delayed or complicated
  • Contract auto-renewal without clear notification

What the 5-Star Reviews Say

The 5-star reviews are also worth examining. Common themes include:

Positive Sales Experience

Many 5-star reviews describe the sales process favourably:

  • "Great deal offered over the phone"
  • "Salesperson was knowledgeable and helpful"
  • "Quick and easy setup"

Individual Employee Praise

A notable pattern: many 5-star reviews mention specific Onecom employees by name. These reviews often read as directed praise for an individual rather than a review of the overall service.

Recent Customers

Some 5-star reviews come from customers who have very recently signed up. They have experienced the sales process and the introductory pricing but have not yet reached the discount expiry point. Their experience so far is positive, but the full picture has not yet unfolded.

Questions About Review Authenticity

Several 1-star reviewers on Trustpilot have raised questions about the authenticity of some positive reviews. Their observations include:

  • Timing patterns: Clusters of 5-star reviews appearing around the same time
  • Review style: Some positive reviews following a similar structure or containing similar phrases
  • Incentivisation claims: Some reviewers allege that Onecom incentivises positive reviews, though we cannot verify this
  • New accounts: Some 5-star reviews come from Trustpilot accounts with no other reviews

We want to be clear: we are not alleging that any specific reviews are fake. Trustpilot has its own systems for detecting fraudulent reviews. But the concerns raised by multiple independent reviewers are worth noting.

Trustpilot does flag businesses that may be engaging in review manipulation, and consumers should be aware that review authenticity is an industry-wide issue, not specific to any one company.

What Other Platforms Say

Trustpilot is not the only source of Onecom reviews. Looking across multiple platforms gives a more complete picture.

Reviews.io

Reviews.io shows Onecom reviews with similar themes to Trustpilot's 1-star reviews. The complaint patterns around misselling, price increases, and customer service are consistent.

Google Reviews

Google Reviews for Onecom contain similar feedback. The consistency across independent, unconnected platforms is significant because it reduces the likelihood that complaints are coordinated or motivated by a single disgruntled group.

The Facebook Group

The Facebook group "Onecom problems & mis-sold contracts" has over 1,400 members. This is not a review platform — it is a community of businesses who feel strongly enough about their Onecom experience to join a public group. The group contains detailed accounts of individual experiences, advice on the complaints and CISAS process, and support for businesses going through disputes.

CISAS Data

While individual CISAS cases are not public, the volume of Onecom customers reporting successful CISAS outcomes in the Facebook group and on review platforms suggests a significant number of adjudication cases. Successful CISAS outcomes typically indicate that the adjudicator found merit in the customer's complaint.

How to Read Onecom Reviews Critically

Whether you are considering Onecom or already a customer, here is how to get the most value from reviews:

Focus on Specific Details

Reviews that describe specific experiences — dates, prices, what was said during the call — are more informative than generic praise or complaints.

Look for Patterns

A single bad review could be an outlier. Hundreds of bad reviews describing the same issue suggest a systemic problem.

Check the Timeline

A 5-star review from someone who signed up last week tells you about the sales experience. A 1-star review from someone 18 months into their contract tells you about the full customer journey. Both are valid but represent different stages.

Cross-Reference Platforms

If the same complaint themes appear on Trustpilot, Reviews.io, Google, and Facebook independently, the issues are likely real and widespread.

Consider the Reviewer's Context

A sole trader signing up for one SIM has a different experience from a company with 50 lines. Both perspectives are valid but serve different audiences.

What This Means for Your Business

If you are considering Onecom:

  • Read the reviews carefully, focusing on customers at a similar stage and scale to your business
  • Ask for everything in writing before agreeing to anything
  • Calculate the full-term cost, not just the introductory price
  • Check Vodafone coverage at your postcodes
  • Compare across all four networks before committing

If you are already with Onecom and experiencing the issues described in reviews:

  • You are not alone — thousands of businesses share your experience
  • Complain in writing and keep all evidence
  • Consider the CISAS route if you believe you were mis-sold
  • Never accept any complaint resolution over the phone — insist on everything in writing
  • Join the Facebook group for support and practical advice

Our Reviews, By Comparison

Compare The Networks has over 1,000 verified reviews on Trustpilot. We are proud of our reputation because it is built on transparency, independence, and genuinely free service. We do not cold call. We do not lock businesses into long contracts. We do not sell one network — we compare all four.

Our model is simple: you tell us what your business needs, we compare deals from EE, Vodafone, O2 and Three, and you choose. The network pays us a commission for the introduction. You pay nothing extra. There is no reseller contract, no hidden increases, and no add-on charges.

Frequently Asked Questions

How many Trustpilot reviews does Onecom have?

Over 13,000. The reviews are polarised between 5-star and 1-star, with consistent complaint themes in the negative reviews.

Are Onecom's Trustpilot reviews reliable?

Read the reviews themselves rather than relying on the headline score. Cross-reference with Reviews.io, Google, and the Facebook group for a complete picture.

What do most complaints focus on?

Misselling, price increases after the discount period, poor post-sale customer service, add-on charges, and difficulty leaving.

Related Reading

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About this article. Claims reported here are attributed to public reviews on Trustpilot and similar platforms. They represent the opinions of the reviewers cited, not statements of fact by Compare The Networks. Brands named may dispute these claims. If you are a brand representative who believes any content requires correction, please contact us.

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