Officials at the exchange are hoping to have all the problems fixed by Aug. 1.
Insurance Commissioner Mike Kreidler told The Associated Press this week that's about all the time he's going to give the exchange to fix the problem. Then he'll starts advising people to buy their health insurance outside the exchange.
In addition to addressing billing problems when people call in to complain, the exchange is also auditing every account used to buy private insurance through Washington's answer to federal health reform.
Exchange officials say some of the problems are related to the way Washington's insurance marketplace was designed. Others happened because of the way people filled out their applications.