No, we do not charge for the cancellation. You can stop your subscription at any time. You paid only to the end of the current month (current subscription period).
In a case of annual payment, you can also cancel at any time and your account can be deactivated, but we do not provide any charge back.
Most of our customers start with 1-2 months with the monthly payment and next switch to the annual subscription.
Feel free to drop us a line firstname.lastname@example.org.