Alfawise doesn't reply to customers

I bought a Alfawise X3200 smart projector through Gearbest and have owned it for 2 years now. For a couple of months now a dark brown spot has developed on the screen which I want repaired. I would of course pay for the repairs as well. I tried contacting Alfawise via email on two different email addresses but no reply. I have contacted Gearbest now and they are going to try to assist.