Bit of an odd/exceptional issue but we are using CartThrobn on a site to sell subscriptions. We want to be able to offer a reduced price subscription if a certain coupon code is added at checkout.
We are currently applying the subscription to a specific, user-generated entry via the
subscription attributes of
I'm guessing we'd need to write our own discount/coupon class but not sure then how we'd then essentially switch the plan to another on submission of a specific coupon code.
Any thoughts how this might be achieved?