Nedbank bad service

I have app**** for an overdraft on the 13th May 2021 with a consultant named Ashik Sampat, he was good enough whilst making the application and explained the process so nicely. Then the 5 - 7 working day wait started. I did my due follow ups and he said that the application was escalated for feedback. NO RESPONSE. I then asked, on the 25th of May for the application to be cancelled. NO RESPONSE. Today 10 or so working days later, I do another follow up to ask for feedback and the response I get it that the application expired.... Whose fault was this expiry and why was I not informed of it....? I'm not happy with this service.