Ea bug or my id got hacked!!!???

Guys I was playing ea fc 25 and I bought the pass for 500,000 coins . After some time I opened all tradable box from that and got like 450,000 ish coins.then 1 day after that I opened fc 25 and saw that my coins was reduced and players suddenly appearing on transfer market. I didn’t bought those players but still my coins got reduced and it got repeated again but this also I didn’t bought those players with coins . They suddenly got on transfer market.
things I did:

1.changed the password 

2.no hacker detected 

3.no new devices logged on