WAMU - Chase Escrow Increase 90.00+ per month .. Phoenix Arizona

I called WaMU/Chase for an explanation of why my mortgage payment went up 90.00+ per month. Usually it was 20.00 or so because of taxes.. etc.. Now it is 90.00 plus. So if 20.00 is a tax increase, what is the other 70.00 for? Insurance did not go up 70.00. When I contacted them all I got was it was a shortage, it was a shortage, nothing else.. It does not make sense. When I was with WaMU, I had no problem with this.. It just seems that they are trying any way they can to make money off the little guy. The also are charging me over 8% interest, and won't refinance cause the properties value went down.. and my interest rate is due to reset in Feb. 2010.. I can hear the laughter clearly... I wanted to tell them where to go, but what is the use, talking to money grubbing thieves, who prey on the little folk, is useless..... So, I will pay and keep my mouth shut, and hope that somewhere, and sometime in the future they will get what is coming to them...wdp