Vodacom problems!

My cellphone was recently ****** so I had to get a new sim card. I purchased the new sim card from a Vodashop and had it activated at the shop. Thereafter it stopped working 5 times. I had to phone Vodacom Customer Care 5 times to have it reset, it was very frustrating. My issue is that most of the time the person that helped me at customer care couldn't actually see what the issue was and told me that there wasn't a problem. I find this unacceptable. My phone is working now but check it every morning in anticipation of it not working anymore. I also recently upgraded my package. I upgraded from a Smart package to a Red package. I received an invoice for May and I see that my package has never been upgraded. I really don't have the time to keep phoning Vodacom Customer Care to sort out issues that should have been the correctly the first time!