Very disappointed with Vodacom - cant get a simple upgrade right

Have been with Vodacom for over 20 years and never have i experienced so many issues. I upgraded last week only to be told it was processed as a new line. I then called and did an upgrade today and get an sms with the wrong contract amount? What is going on guys - your service levels have really gone to the dogs! Cant even get a simple upgrade done correctly. Considering moving after all this admin and stress created - really unnecessary! Get your act together guys please!