My question involves collection proceedings in the State of: CA

Looking for some guidance from someone who has experience dealing with US Bank. I have a ~$20K credit card balance that I stopped paying in February 2010, I have been in contact with someone at US Bank trying to negotiate a debt settlement of $6,000 (=30%) but they will not take it saying that I have to be at least 12 months delinquent for them to even negotiate with me and that they are going to refer my account to litigation at the end of next month. I have 2 questions: is US Bank a credit instituation that normally refers to litigation for $20K of credit card debt, and if not what does US Bank normally take for a settlement (%) once it has been referred to collections? Any insight into this is very appreciated.