Thanks to both for your help. So anyone else reading this thread can learn from the process am posting here. The BT Service link is useful as you TEXT it and it automatically runs test, in my case transfered to an EE text number. If you still need service after it does its checks, a text of GUIDE back initiates a call back to your mobile from EE to start analysis. They called me back very quickly & sounded very knowlegable. Sent off two packets of data, one to the modem, and one to my cabinet (didn't know they could do that) & perhaps crucially identified one area of the possible problem was my immediate surroundings was a bit data congested, so put me on another channel. We are giving it 24-hours (it has gone down again while writing this) and provided his personal email so we can pick up tommorrow if need be. Fingers crossed.
