Nedbank awful service

Nedbank call centre is bad, their card division is also bad. I app**** for a limit increase on my credit on 2021/09/14, got an email on the 2021/09/20 to with an outcome, then had to log on to the nedbank website to accept an offer that was given to me after the assessment of my application which I did! The limit increase has not been loaded to date. I spoke call centre agents from Monday the 20th to date, no 1 could help. Every call centre agent has told me that their are escalating my case, I even went into a branch yesterday at Springs mall and spoke to the manager who told me that there is nothing she can do, I need to keep calling the call centre, I spoke to team leaders, still my limit has not been loaded on my credit card.. These are the references since Monday: *** *** *** *** ***