Deutsche Bank is in the market with a $50 million add-on institutional tranche for credit card information processor Transaction Network Services. Launched at the end of last month, the six-year credit is priced at par with a spread of LIBOR plus 33/ 4%, a banker said. Deutsche Bank underwrote the original $150 million loan backing Chicago-based GTCR Golder Rauner LLC's leveraged buyout of the company last year. Questions were referred to CFO Henry Graham, who did not return calls by press time. The existing $100 million "B" loan is priced at LIBOR plus 31/ 2%. Bank of Tokyo Mitsubishi and Heller Financial are syndication agent and documentation agent, respectively, for the credit. Deutsche Bank officials declined comment.