Cadillac conquest look-back

Does Cadillac offer a conquest rebate on recently terminated leases, and if yes, what’s the look-back window? We just turned in a Mercedes lease in March this year, so would we still qualify for the conquest incentive if we buy a new Cadillac today?

I don’t know the answer, but if you just show them a registration or insurance card with the qualifying vehicle (if those are acceptable), is there any way they can prove you don’t still have it if you don’t mention it?

I could show the registration or insurance card, but it has expired. Does that matter?

For the Optiq, you need to be a current leasee (from the Cadillac website, when you click on details for conquest for leases):

I don’t know what kind of documentation they ask for.

I tried using my recently expired (1 month after) Ioniq lease for conquest last year and they didn’t accept it. They asked for registration and insurance as proof.