British Airways and Comair cant service clients

Today i tried booking a domestic flight with British airways operated by Comair becaise tbey came in at the cheapest (R700 for the trip) . My bank app says payment was successful, but i did not receive an email confirmation. I tried calling the British Airline customer support THREE times and was just on hold for about 45 minutes in total. Then i tried going through the O R TAMBO airport information desk twice that transferred me to the the british aiways/ comair on site offices. These phones do not get answered. So im not sure if this airline doesnt need the business or what.... maybe they think they too big to be concerned with answering their phones, or maybe its just the staff they employ..... but i think i will just book with Mango airlines and pay the extra money