someone is running up phone bills in my name using my phone number ringing premium numbers buying scratch cards etc. BT are no use. '' It's my number so I am responsible' What do I do ? is it best simply to have my phone disconnected, and then try to sort it out ?
Why not change your phone to one where you can set a security code to prevent anyone else using it. There are plenty of inexpensive ones on the market.
get it stopped (outgoing calls)
if it's a land line ... who has access to your phone...?
is there anywhere the wire feeding the phone could be intercepted?
what do you expect BT to do? ... 80% of premium call fraud is down to someone living in the house
the rest is blocks of flats when the line is intercepted.