I want to change my nickname

1. Changing your nickname costs 100 000 crystals. In order to do that, you need to choose your new nickname that has not been taken by anyone else before and send it to help@tankionline.com together with your old nickname. Your nickname will be changed.
2. If you have been blocked due to an inappropriate nickname, changing it is free of charge. To do this you need to send your old and new nicknames to help@tankionline.com.
How to check your nickname availability
How to write to help@tankionline.com