Mythic REQ Pack vehicle cert. no longer unlocked

Hey, so, I purchased some of these mythic REQ packs this last week, with both REQ points and real money. In one of them, I got a Phaeton certification, which comes with three vehicles–I also got another Phaeton in a REQ pack that I opened later on. However, when I was looking through my vehicles today, I noticed that I had 0 Phaetons, and I haven’t used any of them yet. What’s up with that? I’m not sure when they went missing, or why. Maybe it has to do with the coding for the promotional event, as it ended earlier today? I’ve also opened a Warzone Premium Pack since I got the vehicle certification, so perhaps that has something to do with it? I don’t know, but uh, what should I do about it?

343? Anyone? I’m pretty certain that I had my Phaetons a few days ago, but now I don’t even have the certification, which I got from your promotional pack. Why is that?