Disappointing Customer Service

I am a Vodacom former employee over 6 years ago and we were given numbers at the time. When I resigned I was given the number and phone I was using to continue using, I have now lost my phone with the sim and customer care is asking that I go back to my former employers for the sim swap. I have since moved from JHB so how am I supposed to go my former employers to get the sim swap done. I use this for my banking and everything else so this number is everything to me and having to change this will be a serious inconvenience. Zinhle the agent was very rude, nonchalant and very dismissive!

I am disappointed in the service and treatment that I received because it was never like this. Vodacom agents were empathic and about customer satisfaction.