New game save after crash - have I lost Rewards? [XBOX]

I deleted my game save and re-installed the whole game after my Xbox shut itself down, because every time I loaded FM7 it hung for quite a while at load screens and regularly crashed to home screen (only after the Xbox shut itself down, the game was fine before that).

The Specialty Dealer now says I’ve purchased my limit, so have I lost those three cars now?
Will I receive my Tier Rewards (from Forza HUB?) again or are they one time only?

I’ve received VIP rewards again, no problems there.

EDIT: PS - the game runs fine now I’ve re-installed it, no hangs and no crashes yet after two days.