Thank you. I spent 7 hours on and off yesterday with EE chat line support. They kept on trying different phone settings but it was clear to me that the problem was in the network. Eventually they told me to use another local network and it was OK. Whether they tweaked something in their network agreement or whether this would always have worked I cannot tell. Roaming is a great mystery to me but clearly the ability of foreign operators to recognise your phone is variable. I say this because my wife had the same problem as me and was left without connection for 4 days.
