Amazon keeps giving us the runaround

Our company used to be able to create new items on Amazon Seller Central so easily and now we cannot create anything without getting a 8572 error code.

They keep asking us for GS1 certificates and letters of affiliation that we keep providing and then they give us a simple answer like “use this brand name”, I attempt to do that, another error, and then having to resubmit these certificates and letters to get a dumb answer that doesn’t work. Anyone experience this?