"Test" instead of the name of the upgrade indicating the duration. (@NikitOS#Report)
Errors that occur when you press the "enter" button in the input field of the promo code when the duration created through [Xen-Soule] Upgrade Coupons. (@NikitOS#Report)
An error in the error text when you click on the "apply" button without entering a coupon. (@NikitOS#Report)