Hi I am from state of Illinois and I have loaned a sum of $ 20,000 to a friend who has written a promisory note on a plain white paper stating that " the above sum is loaned for 6 months for an annual interest rate of 12 %. It has been over a year and so far after a great struggle he has payed back only half of the amount. now he is not returning my calls. I have recorded all our conversations made over the phone with out his knowledge. where do I legally stand now? would I be still be able to recover the money? Is it too much interest to collect according to illinois law?