You literally purchased one of the smallest suppressors available, it’s not going to be hearing safe with ammo that breaks the sound barrier. Your accusing silencershop of stealing your money, when it seems more likely that there was a lack of research on your part on what you were buying and the capabilities. Suppressor does not mean no hearing protection, simple things like environment can still permanently damage your hearing. Popping off a round in the middle of an open field is drastically different then next to a wall or in a room.