Join Date: Jun 2001
Location: The road less traveled
Programs: UA Gold MM, AA EXP, Delta Platinum, Marriott Titanium, HHonors Diamond, Natl EE, Hertz Platinum
Posts: 5,118
I just used "Ticket By Mail" to ticket a reservation using an Entertainment Coupon and $200 in travel credits. They deducted the $200, but neglected to factor in the additional $50 because they said it is non-cominable.
For the record: the Entertainment certs are combinable with travel credits (not certificates). If you ever get an agent who disagrees with you (and most will!), ask them to look up the profile (PMO/Entertainment 2005) and scroll down to where it says that it is "non-cominable." There is a line in the policy that says: "EXCEPTIONS: TRAVEL CREDITS/VOUCHERS."