Is there any possible way to remove just the coupons from the cart using JSONP?
I want the user on the site to use certain coupon only if they are NOT logged in. But if they add the product and then add the coupon and then log-in then I want to remove the coupon from the cart.
I know I can remove the products from the cart using JSONP or empty the cart, but I dont want to frustrate the customers if they log-in later and then they find their cart empty.
Any help is much appreciated.