Hello !
Unfortunately, that can happen sometimes, as everything is usually confirmed automatically. There's nothing Bananatic can actually do, only the editor has access to that.
I usually try to use a different browser or use private navigation! That works for me. Make sure you don't already have an account for that game. If you do, you'll have to use a different email address and make sure your data isn't linked to your past account by cleaning cookies, etc (but you said you'd already tried that).
Best of luck!
HonnĂȘte
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