Monthly digital subscription with limited downloads

[micahsa]

We offer a subscription for the digital products and currently use SendOwl for the backend delivery system.  The customer purchases through our website and then receives an email from SendOwl with the download link.

We want to offer a subscription that allows them access up to a specific number of downloads each month, let's say 20.

SendOwl has a subscription option, but there a couple issues:

1. It requires that the customer sign up for the subscription with SendOwl's external gateway and create a SendOwl account separate from main website account.
2. In order to track the number of downloads and limit it once that cap of 20 is reached, it requires that we add all of our products to the SendOwl and the customer has to login to their account there (againk not their main account with us) and download the files directly through the Sendowl portal. This interface is very subpar, difficult to navigate, hardly customizable, bad search results, etc.

Ideally, what I want is this:

- Customer has one account with us.  That's it, no secondary account with a subscription provider.

- Customer can purchase a subscription as a product on our website.  Once purchased, they can then purchase up to 20 items from our store in that month and will receive them for free.  This total gets reset each month.

I've looked at Recharge, but can't seem to get it to recognize the discount code during checkout.  

Any help is greatly appreciated!