Onecom vs 4Com: Which Business Telecoms Provider Should You Avoid?
Onecom vs 4Com: Which Business Telecoms Provider Should You Avoid?
Two of the UK's Most Complained-About Business Telecoms Providers
If you are reading this, you are probably researching either Onecom, 4Com, or both. Perhaps you have received a sales call from one of them. Perhaps you are already a customer of one and considering switching to the other. Perhaps you have just Googled their names and found a trail of complaints.
We are Compare The Networks, an independent, OFCOM-regulated business telecoms comparison service. We have been helping UK businesses compare mobile deals since 2008. We talk to businesses every day who have experienced problems with one or both of these providers, and the patterns are remarkably similar.
This is not a recommendation for either provider. This is an honest comparison of two companies that generate a disproportionate number of complaints, and an explanation of why going direct to the networks is almost always the better option.
The Business Model: How Resellers Work
Both Onecom and 4Com are telecoms resellers. They buy wholesale services from the major networks and resell them to businesses with their own branding, pricing, and contract terms.
In theory, a reseller adds value through account management, consolidated billing, and expert advice. In practice, many businesses find that the reseller model adds cost, complexity, and contract obligations that you would not face going direct.
How the Pricing Works
The networks sell wholesale airtime to resellers at a discounted rate. The reseller then marks it up and sells it to you. The difference is their profit margin. This means:
- You pay more per line than you would going direct
- The reseller may use introductory discounts or cashback to make the initial price look competitive
- The full price, which kicks in later, includes the reseller's margin on top of the wholesale cost
This is why many Onecom and 4Com customers report dramatic price increases after introductory periods. The initial discounted price was subsidised to win your business. The post-discount price is what the deal actually costs, including the reseller's cut.
Onecom: The Complaint Profile
Onecom has over 13,000 reviews on Trustpilot. A Facebook group called "Onecom problems & mis-sold contracts" has over 1,400 members. The most common complaints include:
- Misselling: Sales calls where the full pricing was not clearly explained
- Price increases: Bills doubling or tripling after the discount period expired
- 36-month contracts: Long lock-ins that make it expensive to leave
- No cooling-off period: Business contracts exempt from the 14-day right to cancel
- Add-on charges: Services described as "free" during the call appearing as charges on bills
- Coverage issues: Onecom uses Vodafone only, which does not work everywhere
- Customer service decline: Good service during sales, poor service afterwards
Onecom uses the Vodafone network exclusively for mobile services. If Vodafone coverage is poor in your area, you are stuck.
4Com: The Complaint Profile
4Com has a similar profile of complaints, though the specific issues differ in emphasis:
- Long contracts: Typically 36 to 60 months for phone systems and telecoms packages
- Equipment costs: Business phone systems sold or leased at prices customers later feel are excessive
- Aggressive sales: Outbound calling with high-pressure closing techniques
- Difficult to leave: Early termination fees and contract complexities make switching expensive
- Add-on charges: Additional services and features that increase the monthly cost beyond what was discussed
- Leasing arrangements: Some customers report not fully understanding they were entering a lease agreement for equipment
4Com's complaints lean more heavily towards business phone systems and VoIP services, while Onecom complaints are more focused on mobile contracts. But the underlying sales approach is strikingly similar.
Side-by-Side Comparison
| Factor | Onecom | 4Com |
|---|---|---|
| Primary products | Business mobiles (Vodafone) | Business phone systems, mobiles |
| Typical contract length | 36 months | 36 to 60 months |
| Pricing model | Discount/cashback then full price | Various, often with leasing |
| Network | Vodafone only | Varies by product |
| Sales approach | Outbound cold calls | Outbound cold calls |
| Cooling-off period | None for business contracts | None for business contracts |
| Trustpilot reviews | 13,000+ | Thousands |
| Facebook complaints group | 1,400+ members | Community complaints |
| CISAS complaints | Reported by many customers | Reported by customers |
| Key complaint | Price increases after discount | Equipment costs and lock-in |
The Common Thread: Aggressive Sales
Both providers rely heavily on outbound sales — cold calling businesses to sell their services. This in itself is not unusual. What customers report, across both companies, is the manner in which these calls are conducted.
Common themes reported by customers of both providers include:
- Speed of the sales process: Customers report being signed up during the first call without adequate time to consider the deal
- Terms and conditions read aloud: Instead of being sent in writing to read at leisure, T&Cs are read during the call, often quickly
- Focus on the introductory price: The headline figure is emphasised while the post-discount price receives less attention
- Downplaying the contract length: Three years sounds less intimidating when the salesperson focuses on "just 25 pounds a month"
- No cooling-off period disclosure: Many customers report not being clearly told that business contracts have no right to cancel
The pattern is consistent enough across both companies that it appears to be a feature of the business model rather than the actions of individual salespeople.
Why Going Direct to the Networks Is Better
Here is the fundamental question: what value is a reseller actually adding to your deal?
The four major networks — EE, Vodafone, O2 and Three — all sell directly to businesses. They have dedicated business teams, online ordering, and competitive pricing. When you go direct:
You Pay Less
No reseller margin on top of the wholesale price. The network's business price is typically lower than what you would pay through a reseller once the introductory discount expires.
Shorter Contracts
Networks commonly offer 12, 24, or 36-month business contracts. Some even offer 30-day rolling contracts. You are not locked into a reseller's 36 to 60-month term.
Network Choice
You choose the network that works best for your location. Instead of being forced onto Vodafone (Onecom) or a specific provider, you compare coverage and pick what actually works.
Transparent Pricing
The price you see is the price you pay. No cashback to claim, no discount that expires, no hidden increases mid-contract.
Direct Customer Service
If you have a problem, you deal with the network directly. No middleman. No reseller customer service that may be harder to reach than the network's own.
The Better Option: Compare and Go Direct
Instead of choosing between two frequently complained-about resellers, compare deals across all four networks and go direct.
This is exactly what we do. We compare business mobile deals from EE, Vodafone, O2 and Three, check coverage at your postcodes, and present the best options for your specific needs. Our service is completely free — the networks pay us for introductions, not you.
The difference is transparency. We show you what each network offers, what it costs, and what coverage is like at your locations. You choose. There is no lock-in to us, no long-term contract with a reseller, and no surprise price increases.
What If You Are Already with Onecom or 4Com?
If you are currently locked into a contract with either provider:
- Work out when your contract ends and mark the date
- Do not auto-renew — contact them before the renewal date to prevent automatic extension
- If you believe you were mis-sold, complain in writing and consider the CISAS route. Keep all communication in writing — never accept verbal resolutions
- Calculate your early termination fee and compare it against what you would save by switching
- Get a free comparison so you know exactly what alternatives are available
The businesses that get the best outcomes are the ones that plan ahead. Do not wait until the last minute. Start comparing now so you are ready when your contract allows you to move.
Frequently Asked Questions
Is Onecom or 4Com better?
Neither has a strong reputation for customer satisfaction among the businesses we speak to. Both generate high complaint volumes relative to their size. The specific issues differ, but the underlying problems — long contracts, aggressive sales, and post-discount price increases — are common to both.
Can I leave Onecom for 4Com or vice versa?
You can, but we would question why you would swap one reseller for another with similar issues. Compare direct network deals instead.
What is the best alternative?
Compare deals from EE, Vodafone, O2 and Three directly. Use a free, independent comparison service to find the best deal for your business.
Further Reading
- 4Com reviews and alternatives
- Onecom reviews and alternatives
- Onecom misselling: what you need to know
- How to leave Onecom
- Best Onecom alternatives for business mobiles
- Compare business mobile deals across all four networks
Nearly 20 years helping UK businesses. Over 1,000 verified reviews on Trustpilot. OFCOM-regulated. Free.
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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