Banned at Rainbow 6 for no reason because of cheating?

I was banned for cheating at Rainbow 6 wins.

The account contains ingame items worth over 300 euro

I got a 15 day ban.

I stream on Twitch where you can see my gameplay.

I've already written with Ubi Soft Support but they can't help me. Because it's a temporary one.

In addition, I have 2 other accounts that were also banned after about 3 rounds after the ban came on my main account.

Does anyone have any idea why this might be?

I'm afraid to get banned again after 15 days where I have done nothing but really nothing. I also offered them to search my computer pipapo…

I don't know how it works at rainbow but maybe if you stream on twitch and are more famous was that maybe a manual van from a person at Ubisoft who knows you?

Because if your other accs were banned too

Ne do not think I always have between 15 and 40 spectators but I do not think that one of Uplay would ban me ^^ According to the support, it was also an automated ban

I'm not very familiar with PC problems of this kind, I'm spoiled by the console, there are no hackers. But could it be that some program on your computer is incorrectly identified as a hack?