Got FD Pin! Question?

[goofy78]

Hi, I got an email for FD which I didn't realize was a pin (yay!) I am not able to use it for my next trip planned is in November 2013. Anyway, the email was addressed to my mother which had come with us on a prior trip in 2006. At that time she had a 30% off deal because of the Disney travel class action settlement. She had to come on the trip in order to use the discount which she did. So I am wondering if there is any way to change her name to my name in case another pin comes my way and she is not able to come? I'm pretty sure Disney knows my email is associated with my name as I have booked my last two trips directly through them. Any advice? Thanks so much!