Bad customer service

Student advisor Nondumiso mkhwa**** is so unprofessional, I sent her my documents weeks back and after I sent her pop for the registration fee she asked for the documents again. I emailed her explaining that I had already sent her the documents and she said she received them weeks back and when I asked her what is the process now? What happens after I have paid the application fee she doesn’t respond to me anymore. She is giving the college a bad name because of her incompetence