I posted this in the general selling forum but now realize I should have posted it here.

I have been going in circles with Support for two days. After 5 unhelpful, inaccurate, canned responses that clearly show no one is even reading my documentation of the problem, I feel like I am bashing my head against a wall.

I had an FBA book that was listed, received, put into my inventory, and activated by me with no problem. It has been an active item since January 2022. Recently it mysteriously changed from inventory of 1 to inventory of 0, but somehow the listing stayed active. Support response was to change the listing to Inactive, which only made it worse! Then their response was to tell me to manage it in Stranded Inventory or replenish the product. It is not in Stranded, and I cannot replenish because it was my only copy of a used textbook. The latest response was to say the book was a discrepancy in the shipment and was not received, but that discrepancy was for a different book entirely. I have sent them screenshot attachments of everything to show them the book was received and of the listing showing 0. The item has not sold, has not been requested for return, is not listed as stranded or lost and (I hope) has not been disposed of. I have explained it as clearly as I know how. The problem seems to be that the support people do not carefully read my messages and send me hasty, canned messages full of wrong information.

Is there any way to get a Supervisor to look at these message?