Vodacom Business Internet post install services

I have a vodacom business internet line, which is used on a daily basis for my work operations. The line went done and was logged as a case on the monday. Vodacom had advised that the ticket is logged and that someone will be in contact to resolve, since then I have had numerous calls regarding this case will vodacom, however everyone has just advised that the case is under investigation and they don't know when this will be resolved. Therefore I will be unable to continue work operations indefinitely and nobody can provide the contact details of the person performing the investigation to find out what the issue is. Considering this is a business line that cost far more than your average line service and response times have been pathetic and not to mention the loss of income due to the downtime.

In addition to this the internet line has been installed for fixed line speeds which is expected to give you consistent lines speeds. The speeds on the internet where good and consistent for the first 3 months subsequent to this the line speeds haven't provide the fixed speeds that are being paid for.