Comair shoddy services

Worst service ever experienced.Credit on record for 2 unused tickets due to Covid restrictions were misteriously cancelled and no longer acailable when I want to book a flight in April 2022.Calls get cut even hanging on for 30 min or simply were not answered.If lucky at Client Service,no transfer to right Dept could be performed and incorrect or non existing numbers are issued leading to a shipping company outside Durban airport,emails bounce back and 3rd attempt ended an empty promise that some employee would follow up and contact me-up to date no succsess after 1½ weeks of several attempts.This is shocking and unacceptable.Where are clients suppose to take complaints like these mentioned?