Lost Old Pc Progress

Hi all, ive recently begun playing apex on xbox and have my account linked with my old ea account i use to play on pc with. i was unaware cross progression was a think until i recently had a chat with a mate who was in the same boat as me and said all his items and unlocks transfered but mine hasnt. i begun chasing this up as i thought maybe i played on a different ea account under my other older email but that is not the case as i have receipts for purchasing credits and the founders edition/pack way back in 2020. i have yet to spend any money on my xbox as i was hoping to get the old progress transferred before doing so as i dont want to have to choose between a currently free to play messing about account and my old one i spend money for cosmetics on. ive tried searching for a way to submit a case or get in touch with someone but ive found no way to get the old progress back. any help given would be much appreciated