According to a lawsuit filed in L.A. County Superior Court, Via Davia Vintage provided Hill "with an entire wardrobe of high fashion items." The company claims Hill agreed to pay a fixed weekly fee for 4 weeks.

But according to the lawsuit, Hill hung on to the clothes for three months, paying only a fraction of what she owed.. And to top it off ... the consultant claims Hill only returned about 30% of the items, keeping the expensive stuff.

This is the second time in the last two months Hill has been sued because of her 2007 European Tour. Last month, a guitar player sued her for $20,000 ... claiming she stiffed him.