Before contacting support, you can ask about your issue in chat. English chat always has users online.
For free communicating, ideas and suggestions you can use direct emails to firstname.lastname@example.org
You can use any of the 3 languages to communicate: English, Spanish or Russian
if you have some error with deposits/withdrawals/pool rewards it is recommended to create a ticket.
This way support will be able to help faster and more efficient.
Be polite when talking to support and don't ask about things that don't belong to CryptoHub. Also support doesnt respond about our online-staking (PoS), if you think it works badly - just don't use it.