Two convenience store clerks are facing felony charges of commercial gambling following an undercover operation. According to the Richmond County Sheriff’s Office, an investigator received a cash payout from Sadhula Babu Vivek, 34, of Hephzibah, at Amex Mark, 2579 Tobacco Road, on six occasions between June 21 and Aug. 29. He also received cash payouts on three occasions between Aug.