Vodacom has no sense on Customer Service!

I had visited the Phoenix Plaza Vodacom store to buy a sim card & swap my number. A trainee assisted me because the supervisor had gone to the toilet. They told me that I needed my proof of address. So I asked my son to bring it from the car. When I got back to the store the supervisor was still unavailable & the trainee didn't know how to port my number so she kept going in and out the back office to find out but still was unable to assist. I waited for 10 minutes & told the trainee that the manageress doesn't seem to care that there are customers waiting to be attended to. The manageress came from the back office screaming & shouting at me as to how I could make such a statement. I explained that there is no-one in the store that is helping me to do a sim swap. The manageress continued screaming & shouting, such that the gentlemen next to me told her that as the manageress she shouldn't be shouting at customers. The manageress was more interested in gossiping with her staff than seeing to the customers. In the end my proof of address wasn't looked at. I am totally disgusted at the service & lack of professionalism. I am actually thinking of changing networks!