Makro online info change not made for me as promised

My Makro card has for some reason been registered as a business. I am an individual (pensioner). I wanted to buy online but the system keeps trying to charge delivery which is supposed to be free. I called the commercial number as instructed a week ago and was told "IT" would have to change it and I would be called when done. Since then nothing and I have now missed out on some specials. Surely this shouldn't take so long?