Former bartenders and servers of a South Loop restaurant said they’re owed thousands in unpaid wages, after the business was served an eviction notice last month. The eatery Reserv owes an estimated total of $45,800 for unpaid rent since March, court records show. The 9,454-square-foot restaurant at 744 S. Dearborn St. opened in December and replaced Roots Handmade Pizza in Printer's Row. Reserv owner Gerald Joseph said he's contesting the eviction filing and dealing with a dispute involving a b