Idk about ban rate but I botted multiple accounts there and never got banned xd. Just one at a time not insane suicide botting just like 5-8 ish hours a day idk
Use http://k7.net/, sometimes you'll be having a number that you can't use anymore, then just get a new number. Look up youtube if you need a guide on how to use it. I used it and it worked so good luck!
I've been botting monks for hooooours and daaaays, of course with breaks and like 12h max a day and I gain only 3.5k ish exp/h and still not banned LOL.