Finding it impossible to cancel a SIM-only contract within 14-day cooling off period

[jpx63]

I took out a SIM-only contract with O2 last Saturday (1 November). It is now Wednesday 5 November. I changed my mind on Monday, since when I have wasted hours and hours trying in vain to cancel it. The wait times on the phone are unacceptably long (upwards of an hour), and it's at least a two-hour wait on the app. On Facebook they just keep stalling - saying that my 'case' is being looked into and they haven't heard back from 'the team' yet. I don't understand this - it is not a 'case', there's nothing complicated about a simple cancellation. I know that it is my right to cancel with 14 days, but O2 appears to be making it impossible. The stress is extreme. I just do not know what to do, except complain to Ofcom, but I'm not sure they can actually do anything. Any ideas? 

[madasaf1sh]

@jpx63 

The waits on the phone are due to the changes o2 are making, so your only option is to stay on the phone... 

Where did you buy the sim was it in Store or Online? 

As if in store go back to the store. 

You can always try the Sales Team as well on 0800 081 0255 

And to let you know OfCOM will do SFA as they dont deal with consumer complaints, and the ADR service will only deal with you, once you have been through the o2 complaints process which takes upto 8 weeks..