Unless she learns from this one way or another - that will just leave her thinking she can turn to dad to bail her out of her own irresponsibility in future
EDIT: I know you aren't asking for advice - but watched my sister go through this and my parents bailing her out didn't really help her in the long term until she started to take more responsibility of her own accord later in life.
I will 'third' the above opinions. My sister is 3 years older than me (in her mid thirties) and to this day is absolutely terrible with money to the point where she still comes to me to borrow occasionally. She hardly ever gets any though - obviously.Paying off the debt with premium bonds money is probably the right thing for the debt but not the right thing for her.
She needs to learn so you should make her pay it back. If she has a job and living at home with you it should not be too hard. It can easily be cleared in less than a year with a full time job.
My parents bailed her out so many times when we were growing up it's not even funny. You absolutely need to make this her first lesson in adult financial skills. If you don't it'll haunt her for the rest of her life. By paying off the loan for her you're telling her that for the foreseeable future (until you're dead?) you'll be there to bail her out. She won't be able to shake that belief.
You need to make her contact the loans company herself, arrange a payment plan and stick to it. Considering she is working 30hrs per week, living at home and has all those premium bonds this whole situation is not a big deal at all. If you pay it off for her and try to make her pay you back, I'd guess that'll last about 4 months before you start getting excuses. Honestly, I feel quite strongly about this because if I'd have had the financial help/favours my sister had growing up I'd own my own place by now and be living the life of riley.
Unless you want to fast-forward to when she's 35 and still asking to borrow money, you need to take the correct approach now.
