I cannot cancel subscription and stop automatic billing . No answer from email support  till 3 weeks about this issue.

I want to use service now only for next two month again - but not periodically payments.

What can I do? Thanx for answer. John

 Thanks for your message perlandr, and sorry if one of your email went unanswered. Are you sure you were contacting the correct support address? 
To cancel your subscription or order at different perameters, you can just visit Subscribe --> Current Subscriptions, and then selec tthe Order ID to cancel. If you want to pay for multiple months at one time, simply make a deposit for the number of months you'd like to pay in advance.