A somewhat calmer islandman here. I have regional numbers which may or may not be listed, if they are of use they are:-
British Gas 0800 048 0202 = 0113 298 0900
Southern Electric 0800 117116 = 029 2024 96000
However I've since found
www.0800buster.co.uk/ who's website says:- dial 0118 352 0800, wait for a verbal prompt, enter the 0800 number complete then hash. I've tried it and it works.
Oh my lord. I've just trawled down, only to find a wealth of input about the buster site. Can I be the only one that doesn't read thoroughly before posting, der! and sorry.