I recently changed from EE to BT, inserted my new BT sim and up came a message I had voice mail message. Nope. Mutual Finger pointing between BT & EE didn't help, nor did clearing data, nor a factory reset. BT community spot on, only solution was as proved correct, GET A NEW BT SIM, activate it, wait for couple if hours, power phone down and restart. Problem solved, simples.
Re: Voice mail icon showing, no voice mail messages
I have the exact same problem!
Just switched from 02 to BT and have the voice mail icon showing and no messages. So far Ive spent three hours talking to BT or on Live Chat this afternoon and trying this, that and the other and to no avail. The final suggestion is to do a factory reset on the phone. Which according to the comment above probably will not work anyway?
Tried calling 02 as a last resort, and as I suspected they say that they cannot help me, its down to BT