Chicago city officials have admitted that thousands of people overpaid their portion of the 50/50 Sidewalk improvement program, in which the city and resident were supposed to split the cost of sidewalk repairs. Senior citizens were supposed to get an even larger break from the city and pay just 25% of the costs. But records show that 96% of seniors and disabled people paid more than that. The city has no plans for refunding the money, but has issued a statement about the 50/50 program in general.