Hi Fillip,
I will just copy/paste e-mail here.
"We are almost ready to launch our service but have found a problem with the coupons addon. When we set the coupon to have a limited use ( in this example, 1 time use ) it does not work, and allows it to be used as many times possible. If you create a coupon for 100% off and put the usage to 1, you will see a user can apply it and make the "purchase". However, the value does not drop, it stays at 1 in the database. Then, another user can come and make the exact same purchase with the same code. "
I will just copy/paste e-mail here.
"We are almost ready to launch our service but have found a problem with the coupons addon. When we set the coupon to have a limited use ( in this example, 1 time use ) it does not work, and allows it to be used as many times possible. If you create a coupon for 100% off and put the usage to 1, you will see a user can apply it and make the "purchase". However, the value does not drop, it stays at 1 in the database. Then, another user can come and make the exact same purchase with the same code. "