Ddos attack ? (Pretty sure I’ve got evidence plz help)

Now I’m not one to jump to conclusions with stuff like this but here’s what just happened .

So I’ve just played a ranked match and after 40seconds I got kicked and returned to lobby with no minus or or match report . My buddy somehow didn’t get kicked and was still in the match and told me  that everyone bar him and the champion squad were d/c’d and stood completely still ( including me who wasn’t even in the match anymore and was in the lobby able to ready up for another match) . 

He said the champion squad were then going round killing everyone (only the champions name appearing in the kill feed ) , until it was the last 3 squads which included him . They found him and killed him then found the last guy and killed them and won the match . 

All of a sudden while I’m waiting in lobby for him to finish it comes up with a match report saying I got -48 points and a 10 minute abandonment penalty.  He got a plus 46 for placement and I get that , absolutely unfair regardless of wether or not it was just an error or not .

Wtf happened here ??? 

EDIT : next match , same champion squad and exactly the same thing happens - impossible that’s a coincidence and now I get a 30 minute ban and another minus 48!!