You are probably right about the not caring about herself either.
Designer addict luggage = plastic bags.
People can recover. But it really does take a lot. I'm so touched that you love her enough to follow thru with your contract. It's got to be so difficult to do that. Harder than letting it slide. But yet your love shines thru.
Over the long haul, I am sure your daughter will appreciate everything you have done to save her, including giving her the chance to save herself.
At least I would.