Permissable: Delta AMEX Plat Companion Certificate + Voucher ?
I've used the Delta Platinum AMEX Companion Certificate several times. I know it requires you to use your AMEX card to do the purchase of the first ticket plus taxes/fees for the companion. However, can I use some Elecontric vouchers I have from overbooking volunteering? Will the Customer Service folks (non SMS) permit me to use the credits associated with my Skymiles account to cover the cost of the original ticket?
Reason I ask is that if the net cost is zero dollars cash b/c of the vouchers, the AMEX credit card isn't needed for purchase...
Bob