STOLE MY MBAPPE /COINS (9M!)

Today I found out that I have been scammed of my 99 Mbappe due to the servers which I found strange. I bought Mbappe for close to 9m but when I tried to play a match the servers kicked me out I then logged back in to find no Mbappe and no coins can anyone help me and find out what I need to do to get either my coins or my Mbappe back?