Poor service

I had over R800 credit of airtime on my phone. My reoccuring monthly data were stopped when we had a issue on my son's phone. It had nothing to do with my phone, but Vodacom changed my package. When the change was made, I lost my airtime and data. I have paid for it why should I lose it???? We had to make many calls to vodacom to get issues resolved and still they messed it up. I have been with Vodacom for many years, and always had a well structured package. I asked them to stop the additional phone, still not done...... And my account is messed up. I never requested any changes on my phone