Questions about Cat Mate Futterautomat C500

Do the stainless steel inserts from closerpets, art. no. 24714232, fit in this vending machine?

How many hours in total can it be set??? 48 hours???

How long does the wet food stay cool? How often do I need to change the ice packs?

How can the vending machine be switched off? Unfortunately, pressing Off does not work.

Are additional cold packs available?

Can the feeder be programmed for more than 24 hours - e.g. for the weekend?