“I strongly advise against entering into any contract with OneCom. Despite presenting themselves as a communications provider, my negative experience has been that communication is largely one-sided and not in the customer’s favour.
We weres persuaded into re-signing a contract we had intended to exit, through the use of complex and unclear language during a phone conversation. We were then held to ransom by those verbal agreements at significant financial cost with legal action threatened.
We would caution others to avoid agreeing to any contractual terms over the phone, particularly where details are not clearly set out in writing. More importantly, I recommend thoroughly researching reviews and customer experiences before engaging with this company at all.
Learn from our experience—do not make the same mistake!! It will cost you dearly!”
“We recently acquired a new company and, as the new director, I contacted Onecom. Under the same conditions—5 phone users and a faster fibre internet package—we were able to obtain a quote of £103 + VAT elsewhere. However, the existing contract is valued at £212 + VAT, which was signed by the previous director.
Although we have requested assistance, no one has been willing to help. This company appears to prioritise its own interests and shows little regard for its customers. The terms offered seem to be entirely in line with their own benefit.
I would strongly advise staying away from this company. Their prices are very high, and they do not appear to value their customers. I have never encountered such a disappointing experience with a company before.”
“Absolutely shocking experience with Onecom.
We originally signed our contract with Dalys, but since Onecom took over, it’s been nothing but downhill. Prices have doubled while the level of service has been cut in half — completely unacceptable.
I’ve now tried four separate times to cancel our contract. Each time I’ve either been left on hold for an unreasonable amount of time or promised a callback that never happens. It feels like they’re deliberately making it difficult to leave.
Poor service, poor communication, and zero accountability. I would strongly advise anyone considering Onecom to think twice.”
“They operate on an aggressive pricing increase strategy to lock you in.
Think twice if you're considering a business contract. SIM-only price jumps to £80+ unless you re-sign for another 36 months.
Vodafone sells comparable plans for around £30–£40, yet the “standard” price here is over double unless you commit again long-term. Proceed with caution. Onecom will say it's contractually allowed, but the issue is the coercion - pay less again by renewing or pay far more than the market price for a SIM (I've researched and it absolutely over double market price).”
“They are unscrupulous thieves, not only was I paying them over £70 a month for a mobile contract that I now pay £3.25 a month for a better deal but then they decided to charge £ 10 a month for dark web protection, I emailed that if they dared to charge me for it I would complain to ofcom and heard no more but it now turns out they have charged me for it this last year so complain I will and I will also try and get my bank to claim back some of the money as I have been scammed,if I had the money I would sue them as they all derserve to be jailed”
“There are entire sites and facebook pages detailing how awful this company operates. They signed up my eldery 78 year old father for a 5 year business contract. Absolutely evil.”
“Avoid at all costs....these people need closing down - they are scamming small business owners - now trapped in a 3 year deal that is double what I wanted to be paying in the first place - due to ridiculous cancellations fees!”
“Feedback on Onecom Service Experience
I want to share my experience with Onecom so that other small businesses can make informed decisions. I strongly recommend you do not enter in to a contract with Onecom under any circumstances
Background
* I was cold-called by Onecom and persuaded to sign a three-year contract for five work phones.
* I was assured by their representative, Gareth Duggan, that I would incur no termination costs, great customer service and no downtime to my company
Key Issues Encountered
1. Unexpected Termination Fees
* Despite repeated requests for confirmation of costs, I was charged £1000 more than quoted when I needed to end a previous agreement. Why would I get a new contract and pay for it - completely tricked over the phone by a slimy sales man
2. Service and Signal Problems
* I was advised to move to Vodafone with a guarantee I could switch back to EE quickly using eSIMs and with no downtime, if signal wasn’t adequate
* After reporting poor Vodafone signal within days, my concerns were not addressed promptly and I was ignored for days
* The transfer back to EE took over a month, causing significant disruption and lost sales.
* At one point, when we finally moved back to EE my primary EE line was down for a full week - they refunded me £43.20 but nothing for the previous month and no where near enough to compensate the loss of sales.
3. Customer Support
* Promises of ongoing assistance were not met. Emails to Gareth went unanswered, and I was told the issue was “not his department.” This was not the half of its. No one cared or knew what was going on and it got completely out of hand with the amount of people I called to try and get a response
4. Future Contract Concerns
* I have been informed that if I do not renew with Onecom, fees for the five contracts will rise significantly, creating ongoing financial strain and entrapment for the for years to come as I will not be able to pay the termination fees as it will cripple my business.
Dispute Resolution Attempt
* I escalated the matter to CISAS, but the adjudicator’s report did not address the core of my complaint about verbal misrepresentation and I am now left to go to small claims court or ofcom.
The above doesn’t even cover all the issues there are too many to state. DO NOT ENTER IN to a contract with these people.”
“Diabolical company. The list is endless
Sold a 3 Yr contract now saying 5
Said an amount billing me more....can't talk to anyone that knows about accounts, say credits are raised....the amounts change daily but are never received. Asked for a copy of contract call and 2 months later still won't let me have it. Said I would have Microsoft in the package now saying they had made a mistake....now when I call the office they don't answer. As I have complained they won't answer emails either. I will take to court so if anyone want ls to join me let me know”
“I regret ever moving to Onecom.
I was contacted by their sales agent and told I had to upgrade due to the BT ISDN switch-off. I was promised my new cost would be within my current costs and on a 36-month contract. That turned out to be completely untrue — my bills jumped by more than 50% and I was later told my contract runs until 2030.
When I challenged this, Onecom refused to take responsibility. I had to chase them for months, sending countless emails and calls, while they insisted everything was “as agreed.” Only after I reviewed my own call recording did I prove the sales agent had misrepresented the contract length and costs. Even then, they dragged their feet, ignored deadlines, and failed to call me back despite repeated promises.
Their own complaints manager eventually admitted there had been misrepresentation and poor service — but it took me months of stress and persistence to get that far. As of today, I am still waiting for a fair resolution, including a refund for the overcharges.
This company has shown mis-selling, poor complaint handling, and a complete lack of transparency. If I hadn’t had my own call recordings, I dread to think how much longer they would have denied everything.
I would strongly caution other small businesses to avoid Onecom — read their reviews and you’ll see this is not an isolated case.”
“Just awful, I ordered a SIM card for the 24/10/22 and the delivery failed to turn up. I rearranged the delivery for the 28/10/22 and they failed a second time, when I phoned to discuss the issue the agent hung up after struggling to answer difficult questions.”
