Originally Posted by
mahasamatman
The fare basis for both tickets is the same (VVAIZSD1), but I don't know if it changed between the original and the auto-rebook. I still don't know how to find the actual fare rules for VVAIZSD1, nor do I know whether it really is the original fare basis.
If you have a subscription, ExpertFlyer has historical fare rules. If you can give me the approximate original ticketing date and departure date, I can try to look it up for you. I usually discourage people for using EF to help non-subscribers, but your situation is esoteric enough that I feel OK with making an exception. The closest I found using approximate dates was VVAWZND1 which was non-refundable, as were all the other V fares I looked at for MIA-YVR.