(CNN) Master Sgt. Susan Haley's family is the epitome of military sacrifice. She's a 24-year veteran. Her husband served for 26 years. Their son lost his leg serving in Afghanistan.

But now, the California National Guard is demanding more sacrifices from her -- to the tune of $650 a month.

"$650 is a quarter of our monthly income. And you just can't all of a sudden come up with that money," Haley told CNN's "New Day" on Tuesday. "We have depleted our savings."

Haley is one of thousands of veterans being forced to repay millions of dollars in reenlistment bonuses after the California National Guard awarded the bonuses in error. Years later, officials realized many of the veterans were not actually eligible for the bonuses and said they wanted that money back -- with interest.

Christopher Van Meter earned a Purple Heart for his service in Iraq, where he was hurled from an armored vehicle. But he, too, is making enormous sacrifices for the state Guard's mistake.

"We were paying upward $1,300 a month back to that recoupment," he said. "We weren't able to afford everything -- food for the kids, a day care."

The California National Guard and several members of Congress say they would love to see the debts waived. But so far, no one has made that happen.

How did this mess start?

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In 2006, at the height of the Iraq and Afghanistan wars, the Pentagon enticed soldiers to reenlist by offering hefty bonuses. Haley and Van Meter both accepted $15,000 bonuses to extend their service.

But only soldiers with certain assignments -- for example, intelligence, civil affairs and some noncommissioned officer posts -- were supposed to get bonuses, the Los Angeles Times reported.

Investigators later discovered rampant fraud and mismanagement by California Guard officials trying to meet enlistment targets. One Guard official pleaded guilty in 2011 to filing false claims of $15.2 million.

So Haley and Van Meter received letters saying they owed anywhere from $21,000 to $46,000

"I was completely and totally in shock. I couldn't believe they were doing this to me," Haley said. "They said that I had received these monies in violation of federal law. They were very accusatory and very demanding and aggressive."

Both Haley and Van Meter said they appealed, but to no avail.

Why not just waive the debts?

Rep. Mark Takano, a senior member of the House Committee on Veterans' Affairs, said he wants all the repayment demands stopped. But he isn't sure whether the Defense Department had the legal authority to do so.

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"We've been trying to sort this out ever since the story was broken over the weekend," the California congressman told "New Day" on Tuesday. "We weren't clear whether the Department (of Defense) had authority on its own, or whether we actually had to address this statutorily."

Takano has called on Congress to pass legislation that waives the debts.

Defense Department spokesman Capt. Jeff Davis said the military can waive individual repayments on a case-by-case basis, but doesn't have the authority to issue blanket waivers.

The California National Guard said it doesn't have the authority to ignore the debts -- even if it wants to.

"The bonus audit and recoupment process is a federal program governed and adjudicated by the National Guard Bureau and the Department of the Army. The California National Guard does not have the authority to unilaterally waive these debts," it said in a statement.

"However, the California National Guard welcomes any law passed by Congress to waive these debts. Until that time, our priority is to advocate for our soldiers during this difficult process."

The California Military Department , which includes the California Army National Guard and the California Air National Guard, said it's taking steps to try to get debts eliminated.

"We are working with Congressional leaders to support a provision in the National Defense Authorization Act (NDAA) that provides relief to soldiers," the CMD said in a statement. "That vote is expected to take place at the end of the calendar year."

The US Senate Committee on Homeland Security and Governmental Affairs on Tuesday joined the calls to halt collection efforts.

In a letter to Defense Secretary Ashton Carter, the committee said it is examining the department's collection efforts. It asked for documentation, including who in the Pentagon leadership made the decision to recoup the bonuses and how it plans to spend the $22 million already recouped.

$15.2 million in false claims

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The California Guard's incentive manager, retired Master Sgt. Toni Jaffe, pleaded guilty in 2011 to filing false claims of $15.2 million, the Department of Justice said.

"When she pleaded guilty, Jaffe admitted that from the fall of 2007 through October 2009, she routinely submitted false and fictitious claims on behalf of her fellow California National Guard members," the DOJ said in a statement.

"Jaffe admitted that she submitted claims to pay bonuses to members of the California National Guard whom she knew were not eligible to receive the bonuses and to pay off officer's loans, even though she knew the officers were ineligible for loan repayment."

In 2012, she was sentenced to 30 months in federal prison.

Jaffe wasn't alone. The California National Guard reviewed 30,000 individual records and discovered "a small minority of Cal Guard soldiers committed fraud as bonuses were distributed indiscriminately."

Six officers pleaded guilty to misdemeanors, and a brigadier general and two colonels were formally admonished, the California Military Department said.

About 40 soldiers were also disciplined. "In short, they knew they didn't qualify for a bonus and accepted one anyway," the CMD said.

'It's gut-wrenching'

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Van Meter, the Purple Heart recipient, was floored when he got a letter saying he owed a combined $46,000 -- including the $15,000 reenlistment bonus, a student loan and an officer bonus.

"They tacked on a 1% processing fee into that," he said.

"It's gut-wrenching, because you have to figure out what you're going to do and how you're going to survive."

Van Meter said after he retired in 2013, he was given three years to pay off the debt. Eventually, he and his wife refinanced their mortgage to pay off the surprise debt.

According to the Los Angeles Times , the California Guard has told 9,700 current and retired soldiers to repay some or all of their bonuses.

But Col. Michael Piazzoni, commander of the Soldier Incentive Assistance Center -- which performed the audit -- said the number is actually lower.

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Of about 11,000 soldiers included in the audit, 1,100 were found to have received unauthorized payments that they have to pay back. About 5,400 soldiers were found to have missing paperwork or didn't of documentation of eligibility. They may have to pay back that money, Piazzoni said.

So far, auditors have confirmed about 2,000 soldiers received unauthorized bonus payments, amounting to at least $22 million in unauthorized bonuses. This number includes 1,100 soldiers who received unauthorized payments and those from the 5,400 figure who could not show proof.

Struggling to keep her house

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Haley, the master sergeant who has lost her savings, said she now has difficulty paying the mortgage -- and she hasn't even paid her bill to the Army yet "because we just don't have the money," she said.

"We're making sacrifices for our children and cutting back on just everything. And we already had a tight budget to begin with."