on 10-09-2016 19:20
FINALLY, someone found the answer. THANK YOU (repeat 50 times!)
This problem has bugged me for 2 years, I could not vote on TV phone in's, send money to charities, even reply "STOP" to unwanted texts... I even failed to resend a text back to BT complaining about the problem !!!!
Did this solution, only difference was my "Messages" was called "Messanging"; but worked perfectly.
on 10-09-2016 19:32
OnePlus 6 (O2 & Sfr), Z3 Tablet (Three UK), iPhone 8+ (EE)