I am also in B.C. I see from your posts that you ordered on April 11, so you may be further on in the purchase process and looking at paperwork the rest of us have not received yet. I don't have an invoice breakdown like yours, but when I go to my account page and select "Manage", then "Completed Tasks" then "Show Details" I get "Price Details" which shows a total of $8000 under "EV Incentive". This includes the $5,000 Federal and $3,000 BC incentives. My car is also a M3 SR+ white/black 18" no FSD.
I thought that maybe the B.C. program may have exhausted all available funds, but a banner at the top of the page on this website suggests there is $3m remaining (
Clean Energy Vehicles for British Columbia | New Car Dealers of BC).