They cleaned up my account charging me inactivity fees that didn't exist when i signup in 2017. Never sent be any notice regarding terms changes or each time they charged me this. Check the terms of use from 2017 at web.archive.org
Tip for consumers: support answer "...according to our Terms of Service, 18.4, from the moment of recognizing the Account as Inactive, HitBTC has the right, without notification of the User, to debit Inactive Account Fee every calendar month. As per the same Terms, 11.3, we reserve the right to make changes or modifications to these Terms from time to time, in our sole discretion..."