Good. And in the meantime, I would send the "friends" an unpleasant email or two. Why not? They didn't have any compunction about enticing and encouraging your own daughter away from you, did they? Don't be afraid to lash back at people who have grievously injured you.
Mary and Donald,
I understand that you think you've been very clever in helping yourself to my daughter. I appreciate that you're fond of her, but this is a step too far. I do hope that neither of you are a little too fond of her. The police have been notified and will be watching you. I cannot imagine what your motivation might be...unless said motivation is crisp, paper-thin, and can be found in all good banks everywhere. I am not going to transfer her benefits to you, so that you can spend it on yourselves and buy her cheap generic-brand food. You must think I came off last year's Christmas tree. If you think you're getting your grubby little paws on her money, you can think again.
Now, as to her welfare: I expect you to make her study for her A-Levels. If she fails those exams, or does badly, I will hold you responsible. You will have failed in a basic duty of being in loco parentis, and if there's a way to sue you in the civil court for helping to ruin her future, rest assured, I'll do it. She will need compensation money to retake A-Levels. All this can be avoided by making her study. The way I tried to, the night I asked her to be home for an early supper and spend the evening studying, which culminated in you taking her. I appreciate that cooking her supper and trying to make her study is the height of terrible parenting. Maybe you can do better.
I expect you to cook her nutritious meals, supervise her social life, ensure that she has her doctor, dentist and hairdresser visits, and that she gets regular exercise. You will also be responsible for ensuring that she gets to bed at a reasonable hour. You need to limit junk food and instill healthy habits like not vaping. You will also need to supervise her screen time. I'm sure none of this will be a burden or a problem for you. After all, you think you can parent her so much better than me, so do it. Go ahead and parent.
Since I did not consent or agree to this arrangement, there will be no money forthcoming. As you want her so badly, you can pay for her. I will save her benefits in an account for her future. Or she can benefit from them now, under her own roof, by coming home. I simply cannot believe you tried to get her money. You have taken my daughter; do you actually think I'm going to bend over and spread my arse cheeks for you as well? You're living in a dreamland. And if you think that any of this is going to work out well for you, you've got a big surprise in store. If there's any way to get you arrested for influencing a minor away from her home and having you flung in jail for a few nights or longer, rest assured, it's coming your way.
When this is over, I never want to see, hear, or speak to you again as long as I live.
This is what I would send. I have sent emails like this in the past when someone has been utterly egregious in their dealings with me. I never start it, but I do finish it. I'm SO mad on your behalf. They think they can bully a single mum. I do wish I was a lawyer, because I would act for you for free. How dare they take your daughter and collude in her bad behaviour against you?? And why should they get to sit there feeling all smug? I would send this email and upset the entire apple cart.