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How to Leave Onecom: Your Complete Guide to Switching

How to Leave Onecom: Your Complete Guide to Switching

You Are Not Alone

If you are searching for how to leave Onecom, you are one of thousands. There is a Facebook group called "Onecom problems & mis-sold contracts" with over 1,400 members, all navigating the same question you are asking right now. On Trustpilot, Onecom has thousands of reviews and the 1-star feedback consistently mentions difficulty leaving.

We are Compare The Networks. Since 2008, we have helped businesses across the UK find better mobile deals. A significant number of the businesses we quote for are switching from Onecom or a similar single-network provider. This guide covers everything you need to know about getting out.

First: Check Your Contract Status

Before you do anything, you need to know exactly where you stand.

Find Out Your Contract End Date

  • Call Onecom on their customer service number or email your account manager
  • Ask for written confirmation of your contract end date for every line
  • Ask for your current monthly cost per line and what it will be after any discount period ends
  • Ask for a breakdown of any early termination charges if you leave now

Understand the Pricing Structure

Onecom typically operates a cashback or discount model. Your first 17 to 18 months may be at a discounted rate, but the remaining months of your 36-month contract are at a higher standard rate. Read our full breakdown of how this pricing works.

Your Three Routes Out of Onecom

Route 1: Wait for Your Contract to End

If your contract is close to expiring, this is the simplest path. Key things to know:

  • Do not let your contract auto-renew. Some providers roll you onto a new term if you do not actively cancel. Check your terms.
  • Give notice in advance. Most contracts require 30 days written notice before the end date.
  • Start comparing now. Do not wait until the last week. Get a free comparison across EE, Vodafone, O2 and Three so you have your new deal ready to go the day your Onecom contract ends.
  • Request your PAC codes. When you are ready to switch, Onecom must provide PAC codes (to keep your numbers) within one working day of your request. This is an Ofcom requirement.

Route 2: Pay the Early Termination Fee

If you cannot wait, you can leave by paying the remaining contract value. This is usually the total of all remaining monthly charges. For a business with multiple lines, this can be substantial.

However, it is worth doing the maths. If you are past the discount period and paying £80 per line per month, and a direct network deal would cost you £30 per line per month, the savings from switching might cover the exit fee within a few months. See our cost comparison of Onecom vs direct network deals.

We can help you work this out. Get a free quote and we will show you exactly what you would pay elsewhere, so you can calculate whether paying to leave makes financial sense.

Route 3: Challenge the Contract on Misselling Grounds

If you believe your Onecom contract was mis-sold, you have the right to challenge it. This route takes longer but could result in your contract being cancelled without penalty. Read our detailed guide to Onecom misselling for the full process.

Critical: keep everything in writing. Onecom may try to resolve your complaint over the phone. Do not accept any verbal resolution. If your complaint progresses to CISAS (the independent adjudication scheme), written evidence is what matters. Always insist that Onecom puts any response or proposed resolution in an email before you agree to anything.

Step 1: Request a copy of your original sales call recording from Onecom. They are required to keep these.

Step 2: Listen for anything that was misrepresented: pricing that was not clearly explained, add-ons described as free that were actually charged, or critical terms like the lack of a cooling-off period that were glossed over.

Step 3: Submit a formal complaint to Onecom in writing via email. Be specific about what was misrepresented.

Step 4: If Onecom does not resolve your complaint within 8 weeks, or if they issue a deadlock letter, escalate to CISAS. Multiple Onecom customers have successfully had contracts cancelled through CISAS.

Step 5: Report the issue to Ofcom. Even if it does not help your individual case directly, it contributes to regulatory monitoring.

The Switching Process: Step by Step

Once you have a route out of Onecom, here is how the actual switch works.

1. Compare Your Options

Get a free quote from us. We compare deals from EE, Vodafone, O2 and Three based on your actual usage, your postcodes, and your budget. This takes about 10 minutes.

2. Check Coverage

This is the bit that trips people up. Onecom puts you on Vodafone. But Vodafone might not be the best network at your locations. We check coverage at every postcode where your team operates and recommend the network that actually works best for you.

3. Choose Your New Deal

We present you with options from all four networks. You choose the one that fits. Our service is free — the networks pay us, not you.

4. Request Your PAC Codes

Text PAC to 65075 from each Onecom SIM, or call Onecom directly. They must provide your PAC code within one working day. Each PAC code is valid for 30 days.

5. Give Your PAC to Your New Provider

Your new provider activates your number on their network, usually within one working day. Your Onecom service cancels automatically once the port completes.

6. Return Any Handsets If Required

Check your Onecom contract to see if any handsets need returning. If you purchased handsets outright or they were included in your deal, they are yours to keep.

What Will You Save by Switching?

Based on our experience comparing thousands of business mobile deals, businesses switching from a single-network reseller like Onecom to a direct network deal typically save between 15% and 30%.

The savings come from two places:

  1. Competitive pricing. When four networks compete for your business, the pricing is sharper than when one reseller quotes you from one network.
  2. Right-sized plans. Many businesses are paying for more data or minutes than they use. A fresh comparison lets you match your plans to your actual usage.

For a business with 20 lines, a 20% saving on a £30 per line deal is £120 per month, or £1,440 per year. Over a 36-month contract, that is £4,320.

Frequently Asked Questions

How long does it take to leave Onecom?

If your contract has ended, the switch itself takes 1 to 3 working days once you provide your PAC code to your new provider. If you are mid-contract, the timeline depends on whether you pay the exit fee or go through the complaints process.

Will I lose my phone numbers?

No. PAC codes allow you to transfer your existing numbers to any new provider. This is an Ofcom-mandated right.

Can Onecom refuse to let me leave?

They cannot refuse once your contract has ended and you have given proper notice. If you are mid-contract, they can charge early termination fees. If you are challenging on misselling grounds, the process goes through their complaints procedure and potentially CISAS.

What if Onecom offers me a new deal to stay?

They probably will. Retention offers are standard practice. Before accepting, compare it against what the open market offers. A retention deal from one provider on one network is still less competitive than four networks competing for your business.

Should I accept Onecom's resolution over the phone?

No. Always insist on written communication. Verbal agreements are difficult to prove if you need to escalate to CISAS later. Ask them to email you any proposed resolution.

Is Compare The Networks free?

Completely free. The networks pay us a commission. You pay the same price as going direct, or less. No catches.

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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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