Where a single, vague statement by a mortgage servicer employee was not enough to prove a couple was prevented from assuming a mortgage on account of their race, the lower court order was affirmed.The 7th U.S. Circuit Court of Appeals affirmed a decision by U.S. Magistrate Judge Michael G. Gotsch Sr., Northern District of Indiana.Mario and Tiffany Sims purchased a house from John Tiffany in South Bend, Ind., in October 2008 for $185,000. The Simses made a down payment of $12,000 and monthly payments of $1,400 to Tiffany …