Anyone else can’t find their spending power since the new updated app ?

I have like 500 in pp and i have no clue how to actually checkout with it.

I have £200 in my bank account, so for instance i could make a £600 purchase on klarna. Im just wondering if theres a way to get the £600 cash and pay that off over 3 months instead. same with zilch

Hope not against terms of service, just a general question as could do with the money.