I omiitted one thing which Truestballer read wrong. It doesn't matter how many bots are in your division (also it influences how tough the division is) but it matters how many bots are in leagues one level below yours. If there are none (at the time of season update - very important) you can't relegate. If there are few you have a pretty good chance to be saved by bot cleanup (it should work that you would technically relegate and then promote during the process - thus you can appear in a different division of the level; not sure cvompletely about this, I will check this season how it works practically, since my country have some 4thdivision teams now).