How do i get the coupon to work

I am running a special where i am giving away a number of sites in my network and i have a coupon code that i am giving out for my BETA testers. But i am seeing that it is still attempting to charge there pay pal account. there is only one level in my net work at this time. And for the coupon it is set for any level. Not sure what i am doing wrong at this point.