I am a college student, I had a $1000.00 limit, I was disputing a charge with a rental car company named Enterprise, the mechanic was supposed to pay the bill. Enterprise posted this charge without my authorization and Washington Mutual increased the limit to accept the charge, I tried to fight this with WAMU but they are dishonest. They now collect over the limit fees and I have not had any other problems with other credit cards that I have. They should be out of business for their pracices, when I called they stated since you were a good customer, they increased my limit which is now hard to pay, they have no right.