Extremely bad service

I’ve never experienced such bad customer service from my previous banks ever. I registered a company and needed to decide on a bank for my business. I then decided on a different bank from my current provider and chose Nedbank. I feel I’ve made the worse mistake ever. From loading incorrect personal information on my profile to me having to phone them for my bank card after a month then wrong details printed on the card (I just cannot deal with this). I then decided to go back to get my documents and details corrected. I was promised that someone will call me for that, to date no call. Im so furious because I cannot proceed with my business because my information is not corresponding.