Welcome to the Community, @ChumleesMum.
If you haven't already, I'd recommend checking out the steps mentioned in our help article here, as often these troubleshooting steps can help resolve things.
If you continue to struggle from there, you can report these issues to us directly via our fault checker, and depending on what is found we'll either help you arrange an engineer appointment, or a call back from one of our Guides.
Peter
