Coupon question

Hi there,

I have a question based on a small problem we have and wonder if you have the answer. Here is the scenario:

We give a 10% discount thank you card in each of our orders we send out to assist with returning customers. Some customers then return their order for a refund (if the order value is high enough), and order again with the 10% discount code. This is a big hassle for us of course.

Is there any way to prevent this? Not sure if you have come across this issue before…