A mistake that he sent you fake drugs? Sorry, but it sounds like you're waiting to see if he is willing to "buy" your silence on the matter. The bottom line is that a vendor is sending out fake drugs - even if he does say "oh, yeah, that was a mistake. i'll reship the real stuff or give you money," then what is to prevent the vendor from continuing to take advantage of people knowing that the majority won't have tested the product?