Cynthia Obie was at the MGM National Harbor in Oxon Hill, Maryland, last Friday when she won the jackpot on a slot machine, she told FOX 5 DC .
Obie wouldn't reveal the exact amount of her winnings, but said per protocol, MGM staff took her ID and personal information before handing over the cash.
Obie said the employee typed out her Social Security number wrong by one digit, mixing up her information with another person.
She said the person her information was mixed up with owed the state of Maryland child support funds, and Obie's winnings were confiscated.
"I'm like no all of my daughters are grown I've never paid child support I'm like this can't be right," she told FOX 5.
Citing to Maryland law, MGM said the issue was out of its hands and that Obie should contact the Gaming Control Agency and Maryland's Human Services agency, which handles child support disputes.
The casino gave Obie $200 in free play and drink vouchers as an apology.
MGM said in a statement that it is aware of the mix up and wants to help Obie.
The statement said: "We are aware of this unfortunate error and have taken the necessary steps to assist Ms. Obie in rectifying this issue. Due to MLGCA rules and Maryland State Law, we cannot provide an additional payout for this jackpot, however, if she presents the proper identification credentials to the Maryland Gaming Commission, they will provide her with the appropriate payout. We apologize for the inconvenience this has caused Ms. Obie."