Washington Mutual - www.wamu.com
Using WAMU's own online payment system, I attempted to pay my mortgage. The payment was made twice. 15 hours of phone calls later - not speaking with the same person more than once - the promises made to fed ex a reimbursement check to me were not honored. Even though my checking/savings are linked through WAMU, they "couldn't" effect a wire or electronic transfer. And they required 10 days to make certain the funds "cleared", although the funds were in-house. What a convenient way for the institution to make money from my money.