Feel like a yoyo

Took up a contract with Vodacom about 2 months ago. Received my first account last month with the spelling of my surname that I can't even pronounce it. Called the call centre to get it rectified, with their response is to go to a branch they will be able to change it. Now sitting in the branch they advise me I should call the call centre. ***!! WHY DID YOU TAKE A COPY OF MY ID BOOK IN THE FIRST PLACE AND NOW REFUSE TO HELP ME GET IT RECTIFIED. I am sick of being sent from pillar to post. This is my petrol money your wasting.