Yeah strange thing. I got this as well and I was about to report it but then I saw the post

(Bug Report) Cannot join on a match Hello, I don't know if the servers are having a problem right now but 5/10 times when I try to play a game on Matchmaking it shows the message of the picture here: http://prntscr.com/nbph3a . I don't know where to post it so I posted it here. If you can fix it as fast as possible because I want to continue the Challenge.

Hello, I already have Tanki X and it's linked with my Steam account. I'm like 15 level on it. What can I do to receive the reward?

Good news guys. I did something and it worked!

Hello. Yesterday I got a email from Tanki that had the invite code and the download link. I checked my email today and I saw it. I was so happy to grab my phone and download it but when I tried to download it it didn't worked. I already sent a email to Tanki saying that the link doesn't work on my device. If someone could help it would be much appreciated. P.S. I tried to download it in the device that I signed up for the beta :(