I got 99.7 accuracy against an opponent with 7 accuracy, will I get banned?

It also depends on how you did in the games surrounding the high accuracy game.

99% that's unbelievable, time to say goodbye, however any final thoughts b4 ban are welcome

Overall in one of my recent games I had a 87.5 acc. against a 68.4. Both of our openings were a 100% accuracy, and the game lasted to middlegame and my opponent was checkmated on move 26. It was a short game, but when I first saw I had 100% accuracy in my opening, I thought I could be banned because this is a newer account and I have just recently started playing on it, as well as how this is around 1600 elo. Which is not normal at all to ever get near around 100 acc. Although, it was one of my heavily studied openings: the Caro-Kan Defense. I am not sure I'll get banned for fair-play. I was not at all cheating, but at first seeing my opening accuracy startled me. & I feel like chess.com would have to consider the other persons opening acc. which was the same as mine.

As well as I should say I am not worried about being banned, I don't at all think I will be. I just wanted to share that story. It frightened me at first because I had not seen my opponents acc.

I once got a game with accuracy too, but I wasn’t scared of being banned, i was proud of myself

You probably will get a warning for cheating. It's unfair but it's what they do.