Yes,I have called BT, and to tell you the truth I might as well talked to the Queen of England. Polite, yes but ultimately helpful, no! They checked line which they say is ok.
My status connection shows 115200 bps. Now I live in the sticks miles from large population centres so broadband is not yet an option. I used to be on freeserve but it was so slow I changed to BT. They were a significant improvement at first but now seem to sacrafice service for profit!
