Sonja Norwood -- the mother and manager of former America's Got Talent judge Brandy Norwood -- has filed a lawsuit alleging Kardashian and three of her siblings charged $120,636 worth of purchases to her credit card without her permission, E! News reported Tuesday. "The charges against the Kardashians are meritless," Kardashian publicist Cindy Guagenti said in a statement, according to E! News. "The Kardashian family looks forward to proving the absurdity of these claims in a court of law." According to the lawsuit, Kim used Sonja's American Express credit card to make the unauthorized purchases when she was employed as Brandy's stylist in 2006 and 2007. The lawsuit also accuses Kim of sharing Norwood's credit card information with siblings Kourtney, Robert Jr. and Khloe -- who was actually working as Brandy's personal assistant at the time. The siblings then allegedly proceeded to charge their own unauthorized purchases to the card, according to the lawsuit. Some of the unauthorized charges took place at the Kardashian family's Dash and Smooch clothing stores, according to Sonja. Sonja claims that Kim had only been authorized to use her card for a single 2004 purchase and is seeking the return of the $120,636 plus 10% interest. "Both Kim and Khloe were employed by the Norwoods and never used their credit cards without their express authorization," Guagenti said in the statement. Kim's relationship with the Norwood family goes beyond her work as Brandy's former stylist. An X-rated video featuring Kim with her then boyfriend William "Ray J" Norwood Jr. -- who is Brandy's brother -- hit the Internet in early 2007, causing her to file an invasion-of-privacy lawsuit against porn production company Vivid Entertainment, which planned to release a DVD of the steamy footage. Kim eventually reached a multimillion-dollar settlement with Vivid and the video was taken off the market. SOURCE OF THIS STORY