Telkom Sanlam Centre / Parow Centre in shopping mall

I went to Telkom in the shopping Mall of Sanlam Centre to buy data for a month took the brochure with to show the exact package I want and a young lady assisted me. I paid immediately for my data only to discover she billed my data to another customer a gentleman's number. She proceeds to tell a colleague of her mistake and I notice them eyeing me so I ask now look at her questioninly as I can see something is amiss. She then says sorry to say " but I accidentally placed your month's data to another number. It turns out it went to which I believe was the customer before me. She then gives me a paper with said man's details which shows my R***x which I paid and his now enjoying my data. She then says she has to email head office so they can fix it. This happed the 30 August 2022 and I am still waiting for my data. I went in a couple of days afterwards to query and get told they now launching an investigation and cannot tell me exactly when I'm getting my data. To make me lose my cool is when I hear this lady that helped me has been messing up more than one customer two people I know that I mentioned this incident too said to me they hope I didn't have her help me and they described her and said if you go there don't allow her to help she is ***********. I was very understanding but how does Telkom allow this **** service to carry on. Your staff this particular woman has a known reputation for catching on ****. Telkom service is ******* I'm sorry to say.