on 05-06-2023 19:34
Just got my refurbished as new iPhone 12 and I can’t increase the volume of incoming calls above a whisper, my outgoing call is fine
on 05-06-2023 20:52
Send it back and ask O2 to exchange it for one that works.
on 08-06-2023 09:18
O2 can send me a replacement before I return the broken one they supplied.
on 08-06-2023 10:03
Usually you get a doorstep exchange.
Discuss with O2.
on 08-06-2023 10:04
That would be acceptable