When a customer of the Health and Human Service Income Support programs has attempted to complete their business on MD Think, or has called or emailed the OESS Customer Service and Assistance Center, or CSAC to no avail and needs to contact an office representative about cash assistance; food stamps (SNAP); Medicaid; QMB/SLMB (or for questions about appeals; letters; transferring a case or fax numbers), assign a service request.