Problem with Polish sales invoice



I have a problem with invoice. I am a salesman from Poland.
Everything was ok until I changed the NIP number to Polish.
From then on, I received the invoice without any fees (charges) and only with returns (refunds). I wrote to amazon but they can’t help me because they have no knowledge about it. I need a payment invoice to settle this. Is it possible that I had a sale and I don’t have the item - charges?

Please help



I am also looking for invoices for advertising now, unfortunately they are not with other invoices, when I find these invoices


Probably you found it by now, but here is the link to the page, in case, or if anyone else needs it.