Fraud EA Sports

I had bought a c Ronaldo of lower rank and it is tradable card and later I ranked it up into max rank and now my c Ronaldo card is untradable this is not fair I want to trade back as I want fc coins to trade for other player, and this had happend before but I didn't know there was a feature to raise my voice but now I won't sit Quit I want my tradable c Ronaldo back