3 v 3 Intermediate bots go afk after 28 minute...

Hello! So im playing 3 v 3 Intermediate botgames, and everytime i reach 28. minute the bots just randomly go afk... They wont def or anything they just stay afk till game ends. Why?!? Also there are a lot of bots playing (i mean bot players), they just run it down and feed , and they go afk in random, if i report them for cheating they get ban?
Report as:
Offensive Spam Harassment Incorrect Board