You could try deleting all the cookies associated with Gaijin and crossout, disabling the adblocking software and trying to create new account in incognito mode, if you'll be rejected for that account you should write to gaijin support for their confirmation that your account was created via gamehag link, then write to gamehag support about issues with the link to the screenshot of confirmation that your account was created via the gamehag link, but you also need a lot of patience because for me there was always like 2 days wait between support's responses
in 3 steps
Choose the game that interests you and play itfor free.
Every game has some quests for which you will receive Soul Gems.
You can exchange your Soul Gems for Steam Wallet top-ups, game keys, CS:GO Skins and other rewards.
You know that on Gamehag you can get real rewards for free, right? Join us, complete walkthrough and get your chest!
I completed the task 6 times, but they rejecting it! What can I do?