So funny, you made out like you were in the know yet you got this information from a customer service advisor who will have no knowledge of how many units will be obtained from the supplier. I would suggest many retailers have not confirmed how many they can get. The advisor probably told you what they thought was the best answer for the business.
Do you not think that maybe, just maybe..... I know its a stretch but bare with me....
That the guy at Amazon who does know how many unit's they have been allocated knows how to use email and stuff? If he did he would be able to communicate with the other staff?
One can but hope....