SEATTLE -

Officials at the Washington health exchange admitted this week that billing problems have affected about one of every five people who bought health insurance through the exchange.

At a board meeting on Thursday, exchange officials said as many as 28,000 people trying to buy insurance through the exchange were unable to use that insurance during the past seven months because of billing problems.

The Seattle Times reports associate operations director Brad Finnegan says problems have been fixed for about 21,600 individuals. He believes most of the others will be fixed before September begins.

Meanwhile, the board adopted a preliminary budget on Thursday. They are asking the governor and the Legislature to allow them to spend almost $20 million more in 2015 than the $40 million the Legislature has already approved. Most of this money is expected to come from more people signing up for health insurance.