Hi,
I'm sorry you're having a difficult time. I've been there more than once and have learned the hard way that the council always wins

I haven't ever had attachment of earnings, but the arrears, bailiffs, etc. What I can tell you is that most likely, the attachment of earnings WILL stick, regardless. They don't care if your other bills are behind, or even if you can only afford beans on toast for the next however long. They believe that their bill is THE most important, and I'm pretty sure I actually read that in the 'friendly' pamphlet they send out each year with the new council tax bill lol.
Anyways, on the brighter side, utility companies are normally willing to help if you are having trouble paying. That is, assuming you aren't on a token/card meter...that could be rough

If you are managing to scrape by, except with the utilities, then ring them up and speak to them. You can normally sort out a small payment plan. They can send you payment cards and you just put the small amount on them at the local shop. Of course, you'll be in arrears for awhile, but as long as you pay they are all right (in my experience). Even if you default, you can call them back up and try again (done that loads of times, unfortunately).
Good Luck with whatever you decide to do
