Okay I found it and read through.
From what I see, they leave the UNBANNING, solely up to them. And do not post the rate of acceptane/declining.
They also do not state it is "In real life money." They say they will "HEAVILY ROLL BACK" your "Money/Items" or your "Stats."
Can anyone prove to me that they take in real life assets as a mean of unbanning? If so I am fully ready to abuse a glitch I found recently ;p
Here is the real link for anyone curious
http://services.runescape.com/m=forum/forums.ws?250,251,3,62411000
If you do not trust this, go to the forums yourself and copy/paste this QFC.
250-251-3-62411000