Credit card application

I have app**** a credit card 6 daysk ago ,Was advised that i have been pre aprroved . I was requested to send my bank 3 payslips and a copy of identity which i have submited more than 3 times via email ( carddocs@Nedbank ). In the last 6 days nedbank has been texting me to submit the documents. " T ****s: To complete your Nedbank credit card application send your latest 3 months payslips OR bank statements within 4 days.I have been calling the nedbank customer services to update me what seems to be happening this bank service is terrible from the call centre consultant i could not get any response every time you call them they tell you their escalating to the back office i have been given a view reference numbers .What on earth is happening in this banks admonistration devision ? The worst service ever no one seems to know what process is being followed nor what to do when clients call this bank. No one has answers for me . im told to wait for them to call me.