No Hold Music, No Mercy: Cancelling Five UK SIMs by App and Chat in 2026
Photo: Japanexperterna.se from Japan, CC BY-SA 2.0, via Wikimedia Commons
Cancelling a SIM should be simple. In 2026, it often is not. The app says chat. The chat says sign in. The sign-in says call us. The call menu says visit the app. And somewhere in the middle, a cheerful bot offers you 20GB extra to stay.
I wanted to see how close I could get to leaving five popular UK SIM providers without speaking to a human. Not because I enjoy fighting chatbots, but because switching advice usually stops at 'compare deals'. The leaving bit matters just as much.
How I tested
I used five out-of-contract, SIM-only monthly plans: EE, O2, Vodafone, Three and Sky Mobile. All were past any minimum term, so early termination charges were not part of the test. I asked to cancel, not to port my number, and I noted four things: how I got into the cancellation flow, how hard the provider tried to keep me, how quickly a PAC code arrived when requested, and whether the cancellation was confirmed in writing.
I used app chat, web chat and automated phone menus only. I avoided pressing zero for a human unless a menu offered no other route. Times are rough, based on one test on one day. Your queue and your account may behave differently.
The scoreboard
| Provider | Digital route I used | Retention friction | PAC request | Cancellation confirmed |
|---|---|---|---|---|
| EE | App chat, then web chat | Medium: offer before action | Text, quick | Email within the hour |
| O2 | Web chat queue | High: several offers | Text, quick | Email next morning |
| Vodafone | App chat and automated menu | Medium-high: menu loops | Text, quick | Email same day |
| Three | App chat | Low-medium: one offer | Text, quick | Email within minutes |
| Sky Mobile | App chat | Medium: upsell push | Text, quick | Email next day |
EE: app-first, retention second
EE was not the worst, but it was not a straight line either. The app chat got me to the right place, then handed me to web chat. The agent was polite and asked why I was leaving. When I said price, I got an offer. When I declined, the cancellation went through.
The PAC request was painless: a text arrived quickly. The cancellation email landed within the hour. Service stopped when expected. Friction score: medium. It felt like a normal retention conversation rather than a maze.
O2: the queue and the offer stack
O2 had the longest digital wait. The web chat queue was not enormous, but it was enough to make me wonder if the hold music route would have been faster. Once I was through, the retention effort was the most persistent of the five. I was offered a better plan, then a different plan, then a reminder about losing my number.
To be fair, none of it was hostile. It was just repetitive. The cancellation was confirmed by email the next morning, which felt slower than the chat itself. PAC came by text without drama. If you want zero conversation, O2 is not the smoothest, but it is doable.
Vodafone: menus that suggest you stay
Vodafone's app chat worked, but the automated menu before it was keen on self-service. I was pointed towards plan changes and add-ons before I found the cancellation path. The chat agent asked a couple of questions, offered a saving, and then processed the request.
This was the test where I most noticed the difference between 'we are making this easy' and 'we are making this easy to stay'. Not evil, just sticky. The PAC text arrived quickly. The cancellation email came the same day. Service ended when promised.
Three: the least theatrical exit
Three was the quickest of the five. App chat, a short wait, one retention offer, then cancellation. No endless survey, no second queue. The confirmation email arrived within minutes. If you are the sort of person who wants the digital equivalent of a clean handshake, Three was closest.
That does not mean it is always instant. Chat queues move. But in this test, the path was short and the paperwork was clear. PAC by text was quick too.
Sky Mobile: app route, upsell nudge
Sky Mobile was easy enough to reach through the app, but the conversation leaned towards keeping me. I was offered a different data plan and a reminder about saved data. Once I was clear that I wanted to leave, the cancellation was processed.
The confirmation email took until the next day, which is not a disaster, but it is the sort of gap that makes you check your account twice. PAC by text was quick. Overall: medium friction, mostly from the upsell rather than the mechanics.
What a PAC request does, and does not, do
A PAC code is for keeping your number. It is not a cancellation button. In the UK, you can usually text PAC to 65075 for free, and the code should arrive by text. If you do not want to keep your number, you can cancel directly. If you want a switching statement, text INFO to 85075. If you want to keep your number but not pay to port it, STAC to 75075 is the free route.
The trap is assuming a PAC request cancels the old plan. It does not. You still need to use the code with the new provider, and the old service ends when the port completes. If you are cancelling outright, ask for cancellation in writing and keep the confirmation.
The practical checklist
Before you start a chat, get your account details, your final bill date and your notice period ready. Screenshot the chat. Ask for the cancellation confirmation by email. Check that the agent has logged the request as cancellation, not a plan change. If you requested a PAC, keep the text. If you did not, make sure the agent knows you do not want to port your number.
After the chat, check your account the next day. Look for a cancellation notice, a final bill date and any early termination charge warning if you are still in contract. If service is still live after the stated date, follow up in the same chat thread rather than starting again.
The verdict
You can cancel a UK SIM without speaking to a human in 2026. But 'can' is doing a lot of work. Three was the cleanest, EE and Vodafone were manageable with a bit of patience, Sky Mobile was fine once the upsell was over, and O2 demanded the most persistence. None of them made it impossible. Several made it intentionally sticky.
If you are leaving, do not treat the first offer as the final answer, and do not treat a PAC text as a cancellation. Get the confirmation, check the final bill, and keep the screenshots. The hold music is optional. The admin is not.
