Spacemonkeys
I understand that at such moment you don't care and try to obey the rules of the merchant. But please don't forget that the merchant is violating Mastercards rules here, in many times they probably don't even know. You must understand that if no one ever reports such violating of the Mastercard rules that nothing will ever change. It doesn't have to be done in the store of course but can also be done afterwards.
For now it seems it's not possible to print a description on the Green Card so that previous tip won't work. 🙁
