I'm trying to use the .net Paymill Wrapper
When trying to add a subscription, I'm getting back a 400 Bad Request.
To illustrate the problem, I created a branch and changed the Sandbox console app to call the method to test addSubscription
The problem is happening here where the request is actually posted.
The content posted is: (as an example)
client=client_bbe895116de80b6141fd&
offer=offer_32008ddd39954e71ed48&
payment=pay_81ec02206e9b9c587513
It appears this hasn't been updated for sometime, and the original author is unresponsive via email or twitter, so I've forked the repo and am trying to fix the error.