on 18-12-2023 17:52
I’m unable to hear any incoming calls or them hear me but I can hear all WhatsApp calls clearly
on 18-12-2023 18:04
Possible network issue.
Guide: How can I sort out my network issues?
Or pop into your local O2 store with photo ID for a new sim.
https://www.o2.co.uk/storelocator