bad customer service and rudeness

my car was in the work shop yesterday for mechanical issues ,they removed the battery of the car, i never revived a call or notification as per the product plan i have with car track, it took the mechanic about 3 hours to complete the work on the car , i called the contact center to find out what was the matter and why i never received a notification,all i got was poor customer service,bad reception from the contact center and i spoke to Tshepiso who was not helpful at all ,i requested to speak to a team leader ,who was also not helpful very rude ,the so called team leader said they will me called back yesterday,this took place around 20 ;00 pm 17/10/2019 yesterday,and im still waiting for that call back even today ,my worry is what if something bad has happend or m car was hijacked and i call customer service and received such treatment ,im very disappointed