Yes, your opponent was banned for Fair Play violations:
https://support.chess.com/customer/en/portal/articles/1444879-fair-play-on-chess-com-what-you-need-to-know
The game will time out and you will get the win.
Closed for Fair Play
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Nov 20, 2017
0
#3
I'm sad for my opponent, but I'm happy he was caught, and I'm interested to know how they manage to work this out. 
Nov 20, 2017
0
#4
Marc-Loon wrote:
I'm sad for my opponent, but I'm happy he was caught, and I'm interested to know how they manage to work this out.
there's a club for that - https://www.chess.com/club/cheating-forum
talk of cheating in general forums usually leads to the forum being locked by staff.
In the cheating forum it's important not to name suspects whose accounts are still open, but you can freely talk about those who have been caught...
You got one of your opponents banned in MID-GAME? Dude, that's awesome.
Nov 20, 2017
0
#6
oregonpatzer wrote:
You got one of your opponents banned in MID-GAME? Dude, that's awesome.
Benko Gambit Accepted. I thought I was doing well — I wanted to finish!
One of my games is marked "Closed Fair Play". What does this mean? Has the game been stopped or has my opponent been banned?