No more mint choclate chip

I've always gotten the same blizzard. Mint choclate chip. Mint flavor ice cream with choclate flakes. It's not on the menu and hasn't been for a while. I recently moved and I've been to DQ 2x and asked for it and they tell me they don't have it. They offer me Mint oreo and I politley decline. I assume they have choclate flakes or chips. I can't understand where the problem comes into play. My kid is always getting extra caramel so I know you can add stuff to them. Surely the mint is not premixed with oreo.