Sometimes payments show up on people’s bank account statements as “recurring” when they are in fact not. This is what Stripe, our payment processor has to say about it:
This is expected behavior: this "recurring" designation is necessary to save your customer's payment information for future use without re-entering their CVC code each time. The "recurring" flag does not necessarily indicate the customer is subscribed to a recurring billing plan, only that the card was saved for future charges.
For more information, please visit Stripe's FAQ: https://support.stripe.com/questions/non-recurring-charges-show-as-recurring-on-customer-bank-statements