For 15 years, former Texas schoolteacher Kayla Morris put every dollar she could save into a home for her growing family.

When she and her husband sold the house last year, they stowed away the proceeds, $282,153.87, in what they thought of as a safe place — an account at the savings startup Yotta held at a real bank.

Morris, like thousands of other customers, was snared in the collapse of a behind-the-scenes fintech firm called Synapse and has been locked out of her account for six months as of November. She held out hope that her money was still secure. Then she learned how much Evolve Bank & Trust, the lender where her funds were supposed to be held, was prepared to return to her.

“We were informed last Monday that Evolve was only going to pay us $500 out of that $280,000,” Morris said during a court hearing last week, her voice wavering. “It’s just devastating.”

The crisis started in May when a dispute between Synapse and Evolve Bank over customer balances boiled over and the fintech middleman turned off access to a key system used to process transactions. Synapse helped fintech startups like Yotta and Juno, which are not banks, offer checking accounts and debit cards by hooking them up with small lenders like Evolve.

In the immediate aftermath of Synapse’s bankruptcy, which happened after an exodus of its fintech clients, a court-appointed trustee found that up to $96 million of customer funds was missing.

The mystery of where those funds are hasn’t been solved, despite six months of court-mediated efforts between the four banks involved. That’s mostly because the estate of Andreessen Horowitz-backed Synapse doesn’t have the money to hire an outside firm to perform a full reconciliation of its ledgers, according to Jelena McWilliams, the bankruptcy trustee.

But what is now clear is that regular Americans like Morris are bearing the brunt of that shortfall and will receive little or nothing from savings accounts that they believed were backed by the full faith and credit of the U.S. government.

The losses demonstrate the risks of a system where customers didn’t have direct relationships with banks, instead relying on startups to keep track of their funds, who offloaded that responsibility onto middlemen like Synapse.

There are thousands of others like Morris. While there’s not yet a full tally of those left shortchanged, at Yotta alone, 13,725 customers say they are being offered a combined $11.8 million despite putting in $64.9 million in deposits, according to figures shared by Yotta co-founder and CEO Adam Moelis.

CNBC spoke to a dozen customers caught in this predicament, people who are owed sums ranging from $7,000 to well over $200,000.

From FedEx drivers to small business owners, teachers to dentists, they described the loss of years of savings after turning to fintechs like Yotta for the higher interest rates on offer, for innovative features or because they were turned away from traditional banks.

One Yotta customer, Zach Jacobs, logged onto Evolve’s website on Nov. 4 to find he was getting back just $128.68 of the $94,468.92 he had deposited — and he decided to act.

The 37-year-old Tampa, Florida-based business owner began organizing with other victims online, creating a board of volunteers for a group called Fight For Our Funds. It’s his hope that they gain attention from press and politicians.

So far, 3,454 people have signed on, saying they’ve lost a combined $30.4 million.

“When you tell people about this, it’s like, ‘There’s no way this can happen,'” Jacobs said. “A bank just robbed us. This is the first reverse bank robbery in the history of America.”

Andrew Meloan, a chemical engineer from Chicago, said he had hoped to see the return of $200,000 he’d deposited with Yotta. Early this month, he received an unexpected PayPal remittance from Evolve for $5.

“When I signed up, they gave me an Evolve routing and account number,” Meloan said. “Now they’re saying they only have $5 of my money, and the rest is someplace else. I feel like I’ve been conned.”

In June, the FDIC made it clear that its insurance fund doesn’t cover the failure of nonbanks like Synapse, and that in the event of such a firm’s failure, recovering funds through the courts wasn’t guaranteed.

Three months later, the FDIC proposed a new rule that would force banks to keep detailed records for customers of fintech apps, improving the chances that they qualify for coverage in a future calamity and cutting the risk that funds would go missing.

McWilliams, herself a former FDIC chair during the first Trump presidency, told the California judge handling the Synapse bankruptcy case last week she was “disheartened” that every financial regulator has decided not to help.

The FDIC and Federal Reserve declined to comment, and McWilliams didn’t respond to emails.

Things hadn’t always seemed so dire. Early in the proceedings, McWilliams suggested to Judge Martin Barash that customers be given a partial payment, essentially spreading the pain among everyone.

But that would’ve required more coordination between Evolve and the other lenders that held customer funds than what ultimately happened.

As the hearings dragged on, the three other institutions, AMG National Trust, Lineage Bank and American Bank, began disbursing the funds they had, while Evolve took months to perform what it initially said would be a comprehensive reconciliation.

Around the time Evolve completed its efforts in October, it said it could only figure out the user funds it held, not the location of the missing funds. That’s at least partly because of “very large bulk transfers” of funds without identification of who owned the money, a lawyer for Evolve testified last week.

As a result, the bankruptcy process has minted relative winners and losers.

Some end users recently received all their funds back, while others, like Indiana FedEx driver Natasha Craft, received none, she told CNBC.

As of Nov. 12, the four banks released $193 million to customers, or more than 85% of what they held earlier in the year.

The Nov. 13 hearing has provided the only public venue for victims to register their distress; dozens of victims queued up in the hopes they could testify about receiving a tiny fraction of what they’re owed. The event went longer than three hours.

“You can’t imagine the panic when it said I was getting 81 cents,” said Andreatte Caliguire, who said she is owed $22,000. “I have no money, I have no path forward, I have nothing.”

In statements released ahead of this month’s hearing, Evolve said that other banks refused to participate in its efforts to create a master ledger, while AMG and Lineage said that Evolve’s implication that they had the missing funds was “irresponsible and disingenuous.”

As the banks and other parties hurl accusations at each other and lawsuits pile up, including pending class-action efforts, the window for cooperation is rapidly closing, Barash said last week.

“As time goes by, my impression is that unless the banks that are involved can sort this out voluntarily, it may not get sorted out,” Barash said. “There’s nothing optimistic about what I’m telling you.”