Hi! It seems that I haven’t received my trial credits after verfiying.
I’d set a trial credit now for your account. 
So I think you can use all mudfish nodes and features for a while. Please let me know if there’s any problems and questions.
Additional information about bypassing Xigncode to play Tera
https://mudfish.net/docs/en/vpn/features/fastconnect_mode.html
Oh, thanks! I’ve already bought credits because I was excited. The latter tips concerning TERA is appreciated though!