Change the Coupon code used after registration?

If a person used a coupon code to register and it was the wrong code, can I 'as admin' change that code in the administration area after the booking is completed?

HI Lee

If they enter the wrong coupon code, they won't get any discount with their registration (infact, they will have to clear that wrong coupon code before continuing).

You however, could not change the coupon code from back-end. The extension doesn't support that feature at the moment

Tuan