How is the process regarding acquiring MobilePay Subscriptions transactions?

MobilePay has an agreement with a PSP (payment service provider). We at MobilePay take care of the process regarding execution of payments etc. 

The merchant can test as much as they want in sandbox environment, but the merchant will start paying transaction fee in production, as well as "hidden production".

Once the merchant is in production, they will start to pay for production transactions as well.