Misuse of Ambulance Service Costs Lives Posted on 12/02/2015 NARU»News Wire»Ambulance Trusts»South Central Ambulance Service»Misuse of Ambulance Service Costs Lives South Central Ambulance Service NHS Foundation Trust (SCAS) is asking the public to call 999 for emergencies and life-threatening situations only, after it received a call at the weekend from a male who wanted a lift home from Reading town centre.