There are similar threads here about Pros price hikes and the my 22 private offer. Your price should be what you agreed to at the time of ordering, when you deposited 500. The dealer should knock off both 6500 and 4000. The only exception is if you made changes to your order after a price increase then you are stuck with the higher price.
I can’t speak for your situation since I got my XLT before the second increase, but the people getting pros reported both positive experiences and negative. Some dealers took all increases off, some said the dealers would send them checks after the sale, and others have said the dealer wouldn’t honor the other increases (can’t confirm the last because the OP never updated their situation).
Hopefully your dealer is the positive one.