Another data point if needed...call General Reservation line and the CSR didn't seem to know much about the travel packages, but was able to quickly read up on it as I helped "guide" her, too. She was able to convert my OC7 to NC5 and she did quote the QP91 code. The expiration date did extend another year and I was able to attached the new cert to my reservation. All done in about 10 mins...pleasantly surprised. Good luck, Everyone!