Please get in touch with me to correct your mistake, I will refund you the additional transaction once it's found.  Please and thank you.

Resolved.  You had two subscriptions going at different dates.  Refunded you...

Unrelated question.  Is renewal or billing automatic or do you apply and enter your credit card in every year via paypal?  Just curious. 

That's all through PayPal, even the renewal.  You only activate it here, and get the choice to auto-renew or manually do it yourself however you see fit.

You can cancel the subscription from Paypal when you need.  Hope that answers the question.