A Florida woman was astonished when almost $1 billion showed on her bank statement on Saturday. However, the bank representative said it wasn’t a positive balance but a negative balance.

What Julia Yonkowski mistook for a balance was a negative of that amount that the bank published “to draw her attention to an issue with her account,” Chase Bank spokesperson Amy Bonitatibus said to The New York Post on Tuesday, June 22.

The bank representative added: “Our local branch and customer service group spoke to Mrs. Yonkowski yesterday to clarify the discrepancy.”

Since Yonkowski’s late spouse was a partial owner, the bank account was noticed when Yonkowski tried to utilize it. Chase Bank noted that people must submit necessary paperwork in such circumstances to avoid a joint bank account being frozen.

Yonkowski was taken aback when she saw her account had a staggering sum of nearly $1 billion when she attempted to withdraw $20 from an ATM on Saturday, June 19. Her bank balance displayed $999,985,855.94 in her account when she checked it, according to WFLA.

Yonkowski said that she was horrified. “I know most people would think they won the lottery but I was horrified,” she went on to say.

“When I put in for the $20, the machine came back and said we’ll give you the $20 but that’ll cause an overdraft and you will be charged and I said, ‘Oh just forget it,’” She added that she had not accessed her account since then.

“I know I’ve read stories about people that took the money or took out money, and then they had to repay it and I wouldn’t do that anyway because it’s not my money,” Yonkowski told WFLA.

The confused customer explained that she planned to return the large sum as she could not get through to a real person at her bank. “It kind of scares me because you know with cyber threats. You know I don’t know what to think.”, She added.

She recalled that she couldn’t reach Chase Bank before the mix-up was rectified. “I get tied up with their automated system and I can’t get a person,” she said.

Yonkowski hoped her story could be used as an educational lesson.