PayPal Subcription for Hosting Services
From Hostek.com Wiki
Can I create a PayPal Subscription for my Hosting Services?
Yes. You can setup a PayPal Subscription by viewing an invoice before it's due.
I don't see the option to create the PayPal Subscription, why?
If an invoice is Past Due, a PayPal Subscription can not be created for it. You will want to manually pay the Past Due Invoice and then add the PayPal Subscription when the next invoice is created, but before it is due.