Worse Birthday a mom Ever wants

My mother was supposed to fly from Johannesburg to East London on the 18th of July 2018 on her birthday as a gift from her daughters she got to the terminal 5 minutes before boarding due to getting lost at the Johannesburg airport the flight attendant bluntly ignored her and while she was in tears phoning me I ask can I please speak to the flight attendant so we can arrange for her to other guy on a standby flight or to reschedule the flight attendant refused to speak to me or receptionist and bluntly ignored my mother after I could hear her ask her what do we do from here due to my mother being very Afrikaans the flight receptionist also spoke English to her and told her that she doesn't understand her I think this is absolutely unacceptable first thing that is asked is payment upfront that is done immediately then you get to the terminals or to reception and you are treated like dude I cannot believe how a very upset elderly woman is ignored and had to in the Johannesburg airport that is humongous go and look for a manager or assistant that could communicate with her and have the decency to tell her mam give you a daughter call and I will help you how is it that this Airline and it's reception is so poorly managed.