Maybe my mind is just drained after a long night of partying, but, the OP updated with saying "..the seller admitted it was a mistake."I'm curious though, how can he admit it was a mistake after having sent the package? For example, if he sent it out, we assume HE thought he was mailing 1gram. But the buyer received .81 grams (on his clock) of product. When bringing it up with the vendor, how can the vendor verify the buyer is right? And if he admits it was a simple mistake (which I'm sure it was).. does that mean he has previously sent out .8 packages instead of 1G on more then one occasion, and thus when asked by the seller he agreed that could have been the case? Am I even making sense? Fuck, I need sleep. :-X