Who do I file a complaint with, theses Voopoo PNP RBA’s are trash

I bought 2 Voopoo PNP RBA's and are they complete trash, they overtightened the tiny set screws and for the life of me, none of my tweaker screwdrivers fit the tiny slots in the set screws and the same with tiny screwdriver they give you, its doesn't fit and you strip out the threads and had brass shaving coming off, trying to get the screws loose, cause the there trash and a complete waste of money and time and can't get the screws loose, how are you going to tighten them to hold the coils…

Who do I file a complaint with, theses Voopoo PNP RBA's are trash

Original source: https://www.e-cigarette-forum.com/threads/who-do-i-file-a-complaint-with-theses-voopoo-pnp-rbas-are-trash.965451/