If you receive a faulty product…
If you receive a faulty product from banggood, customer support will do everything in their power to take as long as possible, running in circles, asking for photos, videos and finding every excuse on earth not to give you any refund, even if you provide clear evidence. Long story short, the flight controller on my drone is defective, after a month of messaging they ended with giving me advice to solder the board myself, instead of just refunding me. It's basically a "fix it yourself" response. Their strategy is to just bore you to death with pointless technical advice until you give up. Ridiculous company. Never in my life I had an experience this comically bad from a store. A billion dollar company saving every penny, what a joke.