Forever Kids Jewelry review for AfterShip Email Marketing,SMS

I used this app for a popup campaign, It worked fine the first time, some time after when I started a second popup campaign it did not work because the coupon code from the first campaign shows as the code of the second campaign, I even deleted the first code to avoid it from showing it and it didn't work, . Tried everything, this app is messed up, it shows any coupon code, not the one you decide to,. Its Very confusing for costumers and frustrating, I need to find an app that works well always not just the first time.