Congressman Steve Cohen is calling for an investigation into Mo' Money Taxes.
He says some Memphis people have accused the tax preparation company of criminal behavior.
Cohen said his office has been told checks are not coming when promised, and checks are being cashed by the company instead of the customer.
Mo' Money Taxes says it's a technical glitch that's been worked out.
Edna Flowers has been making repeated trips to Mo' Money Taxes, for weeks and still hasn't received her refund check.
"It was all type of excuses they were making. First, from the bank, then they give us a 1-800 number that doesn't exist, it's just a bunch of mess," said Flowers.
Now Congressman Cohen has asked the Attorney General to investigate.
Mo' Money Taxes says any delay in refund is due to a glitch in the third party software, and out of their hands.
"We did have some issues with processing. But at the end of the day, those issues have been reconciled," said a spokesperson for the company.
But, Cohen says some people called his office with claims more serious than a delayed tax check, "If people are taking their checks and cashing them, as was alleged in our office, that their check came back and was cashed by the company…then that's a criminal matter."
Cohen has asked for the investigation and says the local Attorney General might get involved.
"People's taxes is a position of trust. If you do a return and people aren't getting refunds like they should, that hits at the heart of the system," he said.