Something else to check would be that your doesn't have any forwarders arrangement to advance your amazon account. This should either be possible at a customer level or with your supplier, and is certainly worth checking.
The best method of investigating this issue is to amazon password reset required that you or your supplier approaches and you know is most certainly completely functional.
So get your password administrators to check out the reset on its outward excursion to where it is most certainly introduced for conveyance at your end. Either a ricochet back message will be created, which you will actually want to break down for pieces of information, or you will actually want to see on the less than desirable end what happened when the introduced for conveyance.