Progress and Purchases Wiped after linking accounts

I played alot of skate and bought the founder's pack deluxe on my ps5, i then unlink the account from my old ea account and link it to the one my pc uses, download the game on pc and bam everything is gone. I then simply think that cross-progression is not an actual thing

But wait, i go back on my ps5 and its carrying on from where i was on my PC, without any of my purchases.

Money hungry ea tell me that their 'advisors don't support this issue', so that's great. Might as well of chewed up that 50 quid and spat it down the toilet.