I moved this thread to the correct subforum. Purchase and license subforum. The man in charge of licensing should be here to answer your questions soon. Is name is Ivan, he can give you more guidance than I can.
Once expired, AnyStream will notify about expiration. You can renew anytime, renewal period starts always with expiry date - no matter if purchased before or after expiry. Currently we are not able to accept credit cards from the US. We are working on it and we hope to resolve this within next 2-3 days. As long as you see "No Credit Card Payment in the US" on https://www.redfox.bz/en/purchase.html, we are still working on it...