I want to get my Roberto carlos back.

Today I have to complete a mission that 11 player and they all have 20 lvl training and I am a new player in fc mobile and I replace a 103 over card to complete that task with my 113 green rank card of Roberto carlos and I trained that 103 ovr player with my Roberto carlos and many more bronze rank player.so i want my Roberto Carlos back because I am a beginner player and I don't know very thing about this game [removed—never share your UID publicly]. here is my uid. I will be thankful and greatful for this act of kindness.