Solved! Go to Solution.
Has the crossed line issue been sorted now, as described in this thread?
https://community.bt.com/t5/Landline/Landlines-charges-for-calls-not-made/m-p/1920481#M62542
Did you check your number using a phone, as I suggested on that thread?
You should have checked your line as I suggested, as it would have been sorted out long ago. Its always helpful to check things with a phone to make sure.
If you have any problems sorting this out, then please post back here.