I mentioned in a previous post that we had some problems with Vodafone setting up MyVodafone access and being unable to check our available call credit under the cap plan. After more than 5 calls to Vodafone, we managed to get it resolved.
I tweeted the @VodafoneAu_Help staff and within a few days, they were able to resolve the issue very quickly. They found that there was already a record of the phone number in the MyVodafone database and just deleted that, and the registration worked after that. Maybe you can suggest this to the call centre staff if you are experiencing the same problem
So why ring when you can tweet?