Disc renewal

I renewed my license disc via FNB NAVCAR, I was requested to submit supporting documents which I did on the 11th of September, my disc expired on 21st September, I still don't have the disc, I wrote several emails, I made multiple calls, at least three times a day, the keep saying tomorrow, I'm stuck, I don't know what to do, I only have one car which I use to go to work, and to transport my wife from Zeerust to Mafikeng for treatment at least three days in a week. I'm out of options. Selelo Mosikare ***