Gamepass unsubscribing

I subscribed to the Xbox Gamepass for console 2 months ago, mainly to play Forza Horizon 4, but to try some few other games too. But after hearing that they will change the price up to €10 pm, I think it’s logical to unsub, and just buy Forza: If I dont,
I’ll overpay after a few months. The problem is: I just bought a dlc pack, with gamepass discount, but I still paid €20 for it. Will I keep the DLC, or won’t I be able to use it, just like the game?

:)