dwp not giving enough notice

Dear benefitsandwork
( I’m just having a moan, that’s all).
Just received a letter from the dwp on a Saturday telling me to compile quite a detailed list of things ready for a Tuesday morning home visit about me becoming my nephews appointee.

Why didn’t they notify me about this sooner ?? so I would have more time to get everything together such as details of all the family’s income and pensions, that’s one thing,but there’s a big list of things. I’m capable of being an appointee for my nephew but
I struggle with pathological brain fatigue, like there’s not enough space in my head, and my brain becomes difficult to work with. And I’m very disabled, that also doesn’t help.