Unable to play anything above G rating - only on PC

I have Xbox Game Pass and EA Play. I have no issues playing any EA game on my Xbox console. My Xbox account has no content restrictions. 

But when I go onto my PC and try to play any games through the EA app that is rated G or above, I get the following message, "not currently playable" e.g. Battlefield Hardline. which is rated MA15+. If we I switch to game that is rated G such as F1-24 I can download and play it. Game rated PG or above, i get the error "not currently playable".

I'm from Australia. 

For testing, I went back to my Xbox, and had no problems downloading and playing Battlefield Hardline. So its just a PC issue.

I tried clearing the cache for th EA App on the PC, no luck. Unistalled the EA App and reinstalled from scratch, still no luck. I'm at a loss what to try next. 

P.S. I have no issue playing MA15+ titles on the my PC via just GamePass, just those via the EA Play app.