As many as 30% of Americans across the country who lost their jobs in the coronavirus pandemic have not been approved for unemployment benefits, either because of processing delays, outright rejection or the chance they have been called back to work.

In the seven days ended April 11, the number of people who filed initial jobless claims since the viral outbreak shut down large parts of the economy soared by 20 million in raw or actual numbers though seasonally adjusted figures are several million higher still.

Of those new applications, about 14 million have been approved for benefits based on data from the U.S. Labor Department known as continuing claims. They are reported one-week behind the latest government estimate of new jobless claims.

“A key question is how many of the 6 million difference are a function of delays in getting money to people and how many reflect people who filed but then got called back to work or found a job elsewhere,” wrote Stephen Stanley, chief economist of Amherst Pierpont Securities.

It will probably take another month or so to determine just how many people have actually been rejected for benefits once the torrent of new claims recedes. Many states have fallen behind in processing the rush of new claims as they grapple with outdated computer systems and new eligibility standards.

The federal government’s recent $2.2 trillion rescue package boosted compensation and loosened eligibility requirements to include workers who would not have qualified in the past, such as self-employed freelance writers or Uber UBER, -5.72% drivers. An unidentified number of these newly eligible have reportedly had their initial applications rejected.

“State unemployment offices are not set up to handle this sort of volume of claims coming through all at once, especially after a multi-year period where claims were at their lowest levels in decades,” said Thomas Simons, money market economist at Jefferies.

Read:26 million Americans and counting have lost their jobs to the coronavirus

Another strong possibility is that a number of Americans have been called back to work or at least restored to company payrolls. They could account for 2 to 3 million of the 6 million people whose claims were not approved, Stanley estimated.

The federal bailout includes hundreds of billions of dollars in aid for certain industries such as airlines as well as small businesses that keep paying their employees even if they aren’t working. Many small businesses have put workers back on payrolls in exchange for the aid.