Make sure to read the Terms:

 

Register and you'll only be billed after the first 7 days.  If you don't wish to continue, let me know at Day 5 and I'll cancel your subscription, no problem at all!

Cancellation is always 2 days prior to end of month to ensure we catch it prior to renewal.  The subscription runs 1st to last of each month; no cancellations in between!