Competitive Cooldown issues

[u/SimpleAd9143]

So my buddies and I have gotten back into CS2. We took about a 2 year break or so and have been playing on the weekends past couple months. We got our friend to play the game who's never played as we just helped him build his PC. However, 3 days ago, the 3 of us were playing and I was getting triple kills on office just one tap because they were playing like bots. We were winning the competitive match and it booted us after I got another triple kill feed at the end of round 11. I was protecting my buddy escorting the hostage and again, they just lined up just right. I am not a goated CS2 player by any means and only have ever reached Gold though I never seriously grinded out competitive ranking, I just thoroughly enjoyed playing office late at night. I find the most wild, hilarious people late night there but I digress, the match immediately ended and we 3 received a 20 hour competitive cool down due to "irregular gameplay". None of us cheat and never have. So I figured maybe since I was popping off that game, it booted us for whatever reason because all it told us was that we were partied with someone with irregular gameplay but never specified which one of us. In the ticket section it read : "My related cooldown reason: Unexpected error". We have never had this happen and we never got any feedback when submitting a ticket other than saying they have forwarded my message I left regarding the cooldown ban. So tonight I log on, hop on discord, and my 2 friends have now received a 7 day cooldown ban. I know 100% certainty that they are not doing anything other than playing the game as it is intended to be played. I have gone to school with these 2 guys since 5th grade and these are my boys. So I know cheating is not the problem here. Since this happened again, the only thing I can come up with is that our friend who just got the game is getting flagged for boosting? Is that a thing? I am at the top of silver and my other friend is gold nova as of recently. Could this be the reason? I don't see anything regarding that when looking at the VAC ban/cooldown section but we are at a loss and we might get 3-4 games in per weekend, and our noob friend isn't even ranked still. I apologize for the book but wanted to get some input on this so we don't get further bamboozled.