COLUMBUS, Ga., Dec. 18, 2012–TSYS (NYSE: TSS) today announced the signing of a longterm agreement with Merrick Bank, a subsidiary of CardWorks, Inc., to provide flexible solutions for Merrick’s independent sales organization (ISO) partners, including point-of-sale (POS) solutions, authorization, settlement, reporting, managed services and risk mitigation solutions. “TSYS supports a wide variety of Merrick partners,…