
It happen because you have created your account from miniclip, But there is a small trick to do that.
The link you recieve look something like this → http://www.miniclip.com/games/tanki-online/en/#emailChangeHash=xxxxxxxxxx
You just have to replace http://www.miniclip.com/games/tanki-online/en/ with http://tankionline.com/lucky-en.html
Then the link will look like this http://tankionline.com/lucky-en.html#emailxxxxxxxxxxxxxxx
Note: If your link is expired just generate another one :)

Thank you very much, the problem was solved in this manner a day ago as a result of an answer from help@tankionline.com. Best regards.

I need help, I tried to get a confirmation email for my account xX_GOLDEN_Xx which is linked to my old Summer_Bug account. For some reason I am not getting my confirmation email. What do I do?

You can't link 2 accounts on 1 email. I suggest you to make new email account and link your account to new email.
Customer support service by UserEcho
It happen because you have created your account from miniclip, But there is a small trick to do that.
The link you recieve look something like this → http://www.miniclip.com/games/tanki-online/en/#emailChangeHash=xxxxxxxxxx
You just have to replace http://www.miniclip.com/games/tanki-online/en/ with http://tankionline.com/lucky-en.html
Then the link will look like this http://tankionline.com/lucky-en.html#emailxxxxxxxxxxxxxxx
Note: If your link is expired just generate another one :)