No, you cannot. Test server accounts are entirely separate from the ones on the main servers.
Invite codes are like a second password that each Tester is given. (Testers are players who speak fluent Russian and help the developers discover bugs and glitches within the game.)
Only Testers, Candidate Testers and Developers have invite codes.
During mass testing the test server gets opened for everyone who wants to join.
Hello, Please read this: Test Server
Hello, Please read this: How to write to firstname.lastname@example.org?
Hello, Promo codes can't be claimed in the Mobile version.
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Unfortunately you must agree with that fact because developers don't cancel updates.
We can't closely specify a time to expect it. All what we know is fact that the developers are working on it.
If you rarely check news and announcements page on forum or announcements in game you should watch next official tanki online vlogs on youtube channel Tanki Online EN, check sometimes in your app store or tanki online wiki also ask chat moderator on chat if it was issued.
The developers are working on it. Keep an eye on the news and announcemenets to know when this happens.
Customer support service by UserEcho