If it was a while back , i dont think they will do anything about it. If you caught it on the day you got your pills , you would have a better chance convincing them you were shorted. They will assume you are down to the end of the bottle and are trying to score some for free by making up a shortage ( not that you are making it up !!!) Just how the OPs work . always count your pills when you get them. I still would try to see if they will correct it anyway , never hurts to try! Good luck

Tansun