Trying to check balance, tried old number of 789 -nothing. 789000 'not registered on system'. I don't have any texts to send currently, so I can't check that, but last time I tried, it said I had no mobile service. I don't make calls, as I'm deaf, and rely on texts, e-mails and WhatsApp.
Thank you for your reply. I still have no text messaging service, though my phone has indicated a strong signal all along. I have no other device I can try my sim card in, sorry. I did top my phone up with £10, but I can't check my balance as.... I have no text service! I can't use the phone in the normal way, as I am severely deaf. It would seem I need to take my phone to be checked out locally, if the service is actually good.