Gosh, @AFmammaG, I'm sorry your DH is being so unsupportive. £250 is nothing compared to what a stint in rehab would cost.
He's not recognising the fact that addiction is an illness and that many of us can't 'just stop'. If you had a physical problem, surely he would support you.
If possible I would just override him and spend the money. If he has absolute veto power over your spending, that's very controlling.
I'm sure it would also help if you could speak to people in real life who understand what it's like to have alcohol use disorder. You might try out AA or NA meetings. I have been to a lot of AA meetings over the years and they have helped me a lot. Even though I have some reservations about the AA model, I have met some wonderful people there. I currently go to an NA women's meeting because the NA philosophy (while based on the same model as AA) is more modern, so I can identify with it more. (NA considers alcohol to be the same as any other drug, so they welcome alcoholics.) I also love the fact that it's a women's meeting because that makes it feel safer and easier to talk.
If you're in the UK you can also self-refer to community alcohol support services. I haven't used them myself but many of my AA/NA friends have.
The fact that you've done 60 days AF this year is great; you can definitely do it again, but it sounds like you need support.
I suffer from depression and have had frequent suicidal thoughts, but it took me a long time to realise that I had those thoughts only when I was drinking (or hungover). When sober, I almost never have suicidal ideation. Just another reason not to drink.
Be kind to yourself and as I said, maybe consider seeking some RL support.