Where to start. Charging $10 a month for basically nothing, other than access to a TestFlight, which should be free anyways. 

TestFlight isn’t meant to be used to extort your users for more money, it’s meant to test apps BEFORE you charge people for it. 

Charging $50 for a $3 dollar hat. What was it, $30 for a shirt, Are they laced with gold? LMFAO.