Sonja Norwood, the mother of Grammy Award-winning singer Brandy, has accused socialite Kim Kardashian and her three sibilings of committing credit card fraud.

Sonja Norwood filed a lawsuit in L.A. County Superior Court on Monday) against the star, allegeding the Kardashian kids abused the use of a credit card given to Kim to make “one (and only one)” purchase on behalf of Norwood. Kim is accused of giving the American Express card to other members of her family, Khloe, Kourtney and Robert Jr. The three are alleged to have run up debts of $120,635 on the card in 2006 and 2007. The suit also claims thousands of dollars from the unauthorised payments were charged in the family’s Dash and Smooch stores.

“We have her signature on all items,” Kim says.