Vodacom bad service.

I have been with vodacom for about 10years now maybe more. I never had any problems with them until this year. The last 3 months I had problems with them constantly. I've been to 2 branches one at mall@reds and at centurion mall(both of the shops). They dont have stock on their phones and they say you can upgrade but when you call in or get their they say they have system problems and it will be fixed. Today I can finally upgrade but when I got their they didn't have stock of the phone i wanted. So i decided on a different phone and they had only the phone in gold. I left the store after that and when I got home they call me and say they have the first phone i wanted and that the stock suddenly arrived. Vodacom is going backwards. Probably the worst survice I've ever had and will do my best not to go to any vodacom shop ever again.