After many unsuccessful attempts to get through to EE, I was lucky to get an engineer from EE today, who said "the mast is down at the moment, probably due to lightening the other night", he didn't know when the mast will go live again, it could either be in the next couple of days, or even worse in the next couple of weeks, depends how badly it's been damaged and when engineers can get it fixed. Fingers crossed it won't be too long.