Thanks for your prompt reply. On my (fourth [in the last month]) call to customer services today they said that only a Guru could sort this out, that Gurus were unavailable in stores because of the lockdown, and texted me a link to this forum, where they said a Guru might pick up my problem and resolve it.
During my conversation today I suggested that their failure to resolve this problem in over a month constituted a breach of contract on their part which they robustly rejected. Apparently provision of caller IDs is not part of their 'service' as set out in T&Cs. (I'd like to see how many contracts they would sell if their network never provided caller IDs).
So having made the implied threat that, since they are in breach on contract, I intend to leave without penalty, and having had that rebuffed, I would appreciate any advice on how to make Customer Services 'step up'.
Again, many thanks for having taken the time to respond.
