Weird, maybe worth getting them to check there still is not any calls being made?
Just incase someone has managed to connect to your line somehow.
nothing after 19th November.
a few years ago there were several cases of the sky set top box making calls on the phone line it was connected to - i think
don't
think it's this due to the variety of calls - some appear to be residential numbers, some company numbers, some mobiles etc. Somehow or other it looks like someone else's phone calls have gone out on my phone line.