Before I really knew what I was doing I did this...

I made a GC for someone. Thinking they could only use it once. However I have found after sending this person a second one. Which they then used both. One of which was the second time.

How do I get rid of this GC code so they can not keep using it???

It was supposed to be a one time thing.

I now know how to make discount codes that are perfect for one use times. But these 2 other GC codes are out there.

I need to disable them somehow.

Any help????

Thank you, Amber