Corridor Business Journal: Mediacom Communications will issue a total of $5.7 million in credits to 340,000 customers in Iowa, Illinois and Indiana whose service was impacted by the Aug. 10 derecho that tore through the Midwest. The company announced late last week that the largest share of the credits will go to customers in Cedar Rapids and surrounding communities, as those areas sustained the more extensive storm damage affecting Mediacom services. The credits will appear in customers’ October billing statements.