That's expected, it's just a way to clear the current connection before you switch it back to BT.
If there's an EE fault then you're a bit stuck until they fix it. Unfortunately BT have no status checker of their own & EE will only allow you to register for updates with an EE number. Had this recently in my area where EE said they were working on an issue & it would be fixed in 16 hours. It took nearly a week & EE's twitter staff again refuse to entertain queries from other than EE account holders. Having said that, 14 days seems very unlikely for a fault not to be repaired unless it's a catastrophic failure like total destruction of the mast.
Do have have the same issue if you move away from your local transmitter? It might be worthwhile picking up a cheap ASDA SIM or similar locally just to confirm it's not the phone. Here's a list of MVNOs, just choose one that doesn't also use EE & has reported good coverage in your area.
Might also be worth a post on your local Facebook group to see if anyone else is affected.
