Terrible Customer Service

Having had a Vodacom contract for so many year I have never ever experienced such disgusting customer service as I have received in the past 2 weeks. I have gotten married and needed to have my surname changed and boy what a mission it is to get that done. I was sent from pillar to post, and finally on 8 April 2015 I manage to get a staff member that was willing to assist with my request. I was advised to fax through the required documents and the changes would be actioned. On Friday 10 April 2015 I called in to the contact centre to follow up on the progress of the query and to my dismay nothing has been done on the query. I requested to speak to a manager who seemed the least bit interested in assisting and all he advised me as that he will note down the query and get the required department to contact me. Monday 13 April 2015, called in to the customer service number and only to find out that nothing was done on the query as all documents were not received, which is utter ******** as I have a confirmation that the documents was received. Each time I am promised a call back and no one calls me back.