Disappointing Service from Vodacom

It is really disappointing to have received the service that I received from the Vodacom Upgrade department this past week. I tried to upgrade online on the 3rd of January and received an error. I since have called in over 6 times with minimal assistance. I was promised call backs and was never called. Today, when I called in, I was assisted after threatening to port if I was not assisted during the call as my child requires the device for school by the 12th of January. The consultant assisted me and the calls back with another error and explains that the order was not completed and may only be sorted this afternoon or Monday. It is sad to receive such bad service after being a customer and retaining the same number for almost 20 years. I said to the consultant that I require a manager to contact me and if I am not called back, then I will be porting. No call since. This is not the first time that I received bad service and have decided to port my number.