Before I go any further, a word to the wise.
If you have a contract with BG to repair your boiler and they wont come out and fix it within the 24 hour period you signed up for, then whatever you do, do not try and play the 'I have a gas leak' card to try and get an engineer out to you.
Operators are well trained in this and will in fact relish it. They will ask you if you are REALLY sure if you can smell gas.
if you persist you will in fact get an engineer round very fast. However, it will be a Transco engineer who will cut off your gas supply. If you dont let them in the will cut off the supply from outside and leave you with nothing. I repeat, they will cut you off. They will fix nothing.
It will then take you days if not weeks (and money) to get re-connected.
Never play the 'I can smell gas' card unless you can in fact do so.
If you can smell gas the outcome will be the same as above but you will not die.
The only moment of job satisfacion I got when I was there was taking a call from an elderly lady in the scottish highlands who told me she was really worried about her central heating system. I asked her if she could smell gas, she said 'No, but there is water pouring through the light fitting in my living room ceiling'.
She offered to go round the house and turn all the lights on to see if there was any more water pouring through light switches etc. I told her 'No, just stay on the phone and talk to me' while pressing the emergency button. After a two eared phone conversation with her and Transco she was saved. In fact an emergency crew were around her house within 30 minutes.
That was the one and only high point of the whole experience.
Also, never swear at someone on the helpdesk...
Shall I go on? I dont want to bore anyone.