Ungate… with a different supplier?

So I’m having trouble ungating “Hot Wheels/Mattel” or both, I paid the invoice & sent that invoice over to Amazon to ungate, twice they have denied & the case log states “show at least a combined purchase of 10 units of the brand or category you are applying to sell” which is done, & “show the business details of your NEW supplier, including the business name, business phone etc” Did my supplier get black listed or something that we can’t use them? Has anyone dealt with this?