why am i unable to access dlc content if i have ea play

Hi,

I have just got Xbox Gamepass for PC, which includes EA Play and Battlefield 1. I have previously owned the base game to due a promotion with Amazon Prime.

When I logged onto the game (now with EA Play) I expected to have access to all DLC content as Battlefield Revolutions is included with EA Play and the EA app says I own the game.

However, this is not the case and when I go to play on any DLC maps, use DLC guns etc. the game prompts me to buy the Premium Pass (which is included with Revolutions).

Can anyone help me with this issue?

Thanks.