Any way to apply a coupon to an existing ressie?

[nisiemouse]

I have a reservation starting tomorrow using the disney club contract number. Today I got a coupon for an additional $20 off a rental from National. Is there any way to apply it to an existing reservation. I have a good rate and I do not want to mess up my existing ressie because mini vans are sold out. Thanks. We are going to Florida to see the in-laws and my van has been in the shop for two weeks.

 

[RobinLyn]

When you go to pick up your van, you can just hand it to them at the desk and they should be able to deduct the coupn then. Have a great time!

 

[nisiemouse]

We picked up the van today and they did apply the coupon. Thanks.