Community AdminUnfortunately we can't see any specifics/track any progress with TF|2 from the EA side.
As a bit of a long shot you could try getting attention over on the tf2 official forum: https://forums.titanfall.com/en-us/
As mentioned the purchases should always persist through a regen, so hopefully you encountered a once-off issue.
So no help then??
Community Admin@VengefulSakhmet Sorry, I was away for a few days. In this case we (from the EA side) can't see the progression within the game itself. Normally this isn't a problem, I haven't see any reports of unlocks being lost, but in this case I think you best was forward would be to get the attention of the CM over on the main forums.
Hopefully this won't be needed though, I'd be quite surprised if the same issue occurred again.
