Fc 24 coins disappear

I had 1 million coins wipe away from my account two days ago, I spent ton of time on this game every single day since it came out and now all my hard work is gone. I never got a warning or reason on why I got my coins wipe away from my account.

I don't know if it was when I bought a Gardiol for 9.1k to see if I would use him in my team but I wasn't so I sold him for 9.3k or 9.4k as that was his market price at that time and then 1 hour later, I log back on and I see all my coins are wiped.

Still as of right now Gardiol is extinct due to the evolution. Prices went up due to demand for the evolution. I and most of the community shouldn't be punish for something you guys release in the game that causes player prices to go up. I already seen the first case status is already decline, no email back at all, I just submitted another case right now. Just want my coins back.