Data not active

Just upgraded my contract and a consultant who was assisting me did not load data for me. That is the message i got when i called the call center. Niw im being told to drive from Vaal to Clearwater just to get him to activate the data? Why do this shops have a phone number when it is not answered? Is it necessary for me to put petrol on my car to go abd remind them to activate data when I can just phone