So it might not be on stripes end. We as consumers regularly use payment systems that generate a unique card number for subscription services. Then we load up a card with whatever is needed for one month of the subscription service then just don't ever add money to it again. This way we can make use of the first month bonuses or reductions/free products companies provide for initial 1 month get em into the system sales tactics they use but don't have to worry about actually canceling the service once a month's up. The card just bounces and declines payments until it ceases to exist.

You might be experiencing the company end of this...for us the consumer it's easier to do this than it is to keep track of canceling the service after 1 month and also less effort.