The city of Statesboro is revising the eligibility limits on water-bill credits to give more low-income seniors a break after hearing from Concerted Services Inc. But the change has not been enacted yet. Last year City Council voted to give low-income residents age 65 and up a credit on their sanitation bills to counteract the city’s then-new stormwater utility fee, which is $3.95 a month for a single-family home.