Have had my FP2 for almost 2 years, but suddenly can’t send text messages as it says ‘phone number formatted incorrectly’ every time. I’ve not changed SIM, carrier, messaging app or anything else, so I can’t understand why it’s suddenly stopped working?! I can receive texts fine, just can’t reply.

If anyone is with the Phone Co-op I rang them this morning and it sounds like the problem is with their network. Not resolved yet but they are working on it - if you ring them and give your number they’ll keep you updated when it’s fixed. I assume this will apply to most UK people with a fairphone.