My experience is that these organisations are usually helpful, once that you explain your situation.
I would call the (detail removed by Moderator) office directly for help, not the bailiff. They are duty-bound to take into account your situation.
Bailiffs can be bulldogs, and I don’t even think half of them operate by the law. The organisations and energy providers themselves are duty-bound to follow a legal procedure.
As for the (detail removed by Moderator) bill: if it is in his name, he is liable. I was told I was liable, as my ex had secretly put the bills in my name. They said that whoever’s name it was in was responsible for the debt. He could try to claim that you are jointly responsible, but the fact his name is on the bill means something.
Don’t panic. I went into panic mode when my ex cleverly engineered it so that I was left with masses of bills. But every department was helpful. They have special services for those who are financially struggling, and even energy trust funds to help. Don’t be afraid to ask them for help. At the end of the day, these companies just want paying somehow, they don’t always care by whom or when.