Unprofessional Service of Nitara - Supervisor for Qatar airways Johannesburg

Worst experience ever received from Qatar Airways Johannesburg Supervisor today 11.09.2022. Her name is Nitara, she refused to provide her last name saying for data protection purposes however it was explained she is the Supervisor. I am a frequent traveller working in Kabul and travel to Kabul via Doha and Islamabad since Jan 2022 every 4 weeks. I use UNHAS flights from Pakistan to Kabul with transit period of less than 4hrs. Based on directive from Islamabad Immigration authorities, we do not require a Paki visa to transit Pakistan within 24hrs. I have never had issues previously travelling this route for the past 8 months travelling every 4 weeks and had no issues getting to Islamabad and transiting to Kabul. Nitara was rude, no customer orientation skills, was not willing to listen nor read the immigration authorities letter being provided to her. I had UNHAS officials from Islamabad online willing to explain that this is not the requirement but she was not willing to speak to them on the phone. I asked her to provide an email address for correspondence where this can be clarified, she blatantly refused, was not interested and could not care that I am missing my flight whilst I am expected to report at work the next day. I requested contact email where our office can coordinate with her office to clarify the issue and she refused to provide this too. For a supervisor, I found her customer orientation skills extremely appalling. Does not want to listen nor hear reason without any rationale. She was rude and lacks basic customer service skills. I do not understand how someone with her profile was appointed as a Supervisor and what Supervision she provides to those working for the airline. For an airline that prides itself in being client oriented, Nitara absolutely does not have the competencies and shoud never be in this role. I asked the check in counter staff to provide details of Nitara's supervisor so I can engage him. Was informed he does not work on weekends and email cannot be provided, thus the only person to speak to is Nitara who is ill informed and unwilling to listen nor understand.