No Service Delivery

I asked for a upgrade on my ADSL line a couple of weeks ago. A date was set for Thursday last week from T Telkom. The lady arrived her in the morning wanting to install a new service, but this was soon rectified. long story short after her running around all day trying to do the upgrade it wasn't done. She came up with some excuse at the end of the day saying that there is some issue with the exchange and guaranteed me it will be sorted out on Friday. Well its no almost a week later and still no upgrade. I have phoned her daily and every day the same promises are made. this is frustrating as it is my business place.