Customers often have doubts what the subscription exactly means in practice.
They seem to be surprised that they got the subscription after purchasing the template.
Usually they say "I thought that I bought the template for life! Will I have to pay for it after the subscription expire?"
After making the purchase you have to wait few minutes (sometimes it takes more time, depends on the client location) till 2CO payment processor verify your credit card.
2CO has to check if you are aothirized customer to pay with the credit card you used.