HAZELWOOD, Mo. - It’s not unusual for Shelly Singleton to scroll through Walmart's website and place an order. But when she got a text message from her bank asking her about a $58 charge from the site, she was suspicious. 

“I went to my bank account first to see what they are talking about. I noticed five charges of $61.81,” she said.

Seeing what appeared to be even more serious unauthorized charges on her account, Singleton immediately called Regions Bank.

“She said, as long as it's pending, we can't do anything until they’re completed, and then they can file the claim for it,” she added.

Her card was closed, and in the next few days the charges were gone from her account. But a day later, the problems reappeared.

“The charges were back, completed, but for $61.04,” Singleton said.

She went to her local Regions branch to share her concerns.

“He couldn't explain why it was, so he immediately did the fraud charters on everything. But he also told me that at least 30 other customers had come in...from last week up to the date with the same issue with walmart.com,” said Singleton.

FOX 2 contacted Regions Bank. In a statement, a spokesperson confirmed the bank is seeing a trend affecting a small subset of customers. Regions is still accessing the scope, but said it’s not contained to just one bank branch or the St. Louis area.

We also contacted Walmart. A spokesperson told us the company is investigating this matter. Walmart said there’s been no data breach or hack, adding its customer care team would be reaching out to Shelly.

“I've been a victim of identity theft, and I check my accounts every day, because once you're a victim of identity theft, things happen. That's why I'm diligent in checking my accounts--because I was a victim of identity theft. I mean, times are hard for people. We don't have any time for people messing with anybody's accounts,” Singleton added.

Regions Bank says it will continue to raise red flags as they detect suspicious activity. The bank is encouraging its customers to remain vigilant in checking their accounts. FOX 2 will continue to follow this story and share more information as it comes in.