Please use the contact form below for any and all payment issues including promotion application issues.
www.joomlapolis.com/contact-us
I do not provide payment support here as I am not responsible for such things. I have very limited access to that information. With what I do have access to I do not see any issues with that promotion code in particular.
Please keep in mind you cannot combine promotions. So if you're trying to combine loyalty with a newsletter promotion code you are only permitted to use either/or not both.