Very poor customer service. Came here once before with a coupon that allowed for a free royal treat with purchase of another and was able to get the royal blizzard. Tried it this time and all they said a royal blizzard is NOT a royal treat. We even said we had the coupon when ordering so that they wouldn't get confused. Apparently, there is only one royal treat, so I have a coupon for a single menu item. That just doesn't sound right to me.
Also, they messed up the order anyways. We asked for a regular and large royal blizzard and ended up getting a large royal one and a standard regular sized one. Definitely won't be going back anytime soon.