Sadly, that's the only way to contact them. :(

Hey, NAYEEM! How can I help you? :D

Hello, how can I help you, ana181?

Hi! 

If your account has been blocked and you think it was a mistake, please contact our Technical Assistance using this form.

More info.

Hey, please read the article carefully, it's to identify the cause for network issues between you and the game server(s); and then if you have any doubts, drop it here and I will try my best to explain it or help you. :)

Hey, unfortunately, you need an e-mail account to receive a reply (or, replies) from our Technical Support guys. Please read this to learn to create an e-mail account.

Hey, there are a number of ways you can obtain Tankoins, please read this Knowledge Base article.

Hey, please read this quoted text from the article:

To change your nickname, you need to buy the Rename Pass. To buy the Rename Pass, simply open shop and scroll down to the very bottom. You will see an item called "Rename:

This unique pass allows you to change your nickname once, and it gets removed from your garage immediately after use. It can be purchased in the Shop for 2000 Tankoins. After purchasing this product, it appears in the "Special" category of your Garage:

Hey, the article asks you to contact our Technical Support team using this form; so please do so, they will try their best to help you out!

Hey Shengelia,

Please contact our Technical Support team using this form. They will try their best to help you in this situation. Please read this help article, that you are on at the moment, to learn more.

Have a great day!