I'd imagine we'll end up writing it off. She works in the travel industry so I doubt she's gonna be gainfully employed any time soon.
As for GDPR, we're not asking for proof in the form of bank statements, etc. Just for her to give us her own breakdown, which she's agreed to. Obviously she could tell us anything...
Northern Monkey ... who can't upload a bleeding Avatar
Look, you've made a noble gesture and now you're clearly wanting to wriggle out of it. You're suffering from whatever the giver's equivalent of buyer's remorse is. However, having made the commitment to cut her rent by 70%, you have to stick by it, I'm afraid. Anything else undermines the whole point of having done something nice and, as Pokster says, makes you a bit of a ****.
At no point have I said anything about not sticking to the arrangement. But as I've gone on to explain, we anticipate her asking for a prolonged reduction as her job prospects are grim. And so we either ask her to find somewhere else to live or we gain a fuller understanding of her finances in order to decide what would be a reasonable reduction longer term.