I have 4 cars in this bank - in total I have paid ...

I have 4 cars in this bank - in total I have paid several hundred zlotys more than the invoices show. My fault, however, thought that this financial institution is fair and will compensate for this surplus. When I handed over one of the cars, I heard that nothing could be more wrong - you have to remind yourself. However, I reminded the lady from the bank pretending that she cannot find the surplus. The police should take care of it, it's a scam. Slowly I will give myself time and I will settle them for a zloty. I think it is a shame for Audi to use such overt manipulations.