Change payment method on existing subscription
If the user wants to change payment method for the subscription this can be done in three ways :
Let the user choose between existing payment method,
or enter a new one on an own page as described above for sign up for existing user,
or just direct the user to a hosted page at Billwerk+ .
The subscription object provides a link to a page:
"hosted_page_links": {
"payment_info": "https://subdomain.reepay.com/paymentinfo/myaccount/4bc5f5f5536146a8b745aeab555162df"
},The page provides a simple card entering page for changing card on subscription.