Conquest Rewards still missing

I unlocked Maul from one of the challenges that’s  put out every couple of weeks. Idr the actual name of the challenges but there are a series of characters you can unlock gaining the points to do so over time. Theres like 10 characters (??) You gotta work for. One was the older Boba Fett too i unlocked. I’m not looking to cause a problem by any means. It’s not like I sunk $$$ into it. It’d be cool to add Maul to my collection