I managed a $60M/yr amazon business and these kind of issues would happen on a monthly basis. We were on Vendor Central so we had a dedicated rep. He would avo

I managed a $60M/yr amazon business and these kind of issues would happen on a monthly basis. We were on Vendor Central so we had a dedicated rep. He would avoid helping us however, and use the opportunity to force us to renegotiate our rates (so Amazon could have more margin). Then the issue would disappear. This happened so often we suspected these automatic issues were actually orchestrated to secure more margin. The Amazon rep told us that he had quotas to hit of new margin targets for us every quarter. We also consistently had issues of Amazon reporting under-deliveries and holding our funds. We shipped product in packages of (modulo) 8, and so they ordered in packages of (modulo) 8. When it arrived at the warehouse, they'd mark only 7 delivered, which is not feasible, sell the extra one and refuse to pay us for that 8th unit. This amounted to millions of dollars. I eventually tracked every single package we had ever shipped and presented evidence of this fraud to them. They offered to pay us 30 cents on the dollar if we signed a waiver forgiving the rest.