Placement Fee Scam By Amazon Or am I Just Confused...

I sent amazon a shipment of 2,400 units they say they recieved 2526, defiently not possible for our case packs. I had pictures of the pallets and submited a case. It took awhile but amazon removed the additional 126 units from the shipment log. HOWEVER they still charged me a higher placement fee AND a monthly storage fee on the units they never recieved and admitted to not getting. To make matters worse the additional placement fee when I set up the shipment was $528, the final placement fee charge was $682.. yet amazon says there is no reimbursement necessary as $528 and $682 are the same numbers... attaching the email from amazon support as well as what the placement fee charges should have been.

I also have a shipment inbound for amazon right now and guess what they checked it in and said they got an additional 400 UNITS WTH!!! so is this the new norm scam for them?