No Service, Constantly messing me around

I have app**** for a contract with Vodacom, First instore and was told that they can not help me I must apply online, So I did this and was asked to send through documents which I then did. After receiving no feedback I contacted them Again, First to hear that apparently my Banking details are duplicate? IMPOSSIBLE! and then to hear that they can not help me because my surname changed because I got married. I sent through my ID and marriage certificate and still they are not willing to assist me! I asked to speak to a supervisor and was just given the run around that I must call customer care. This is absolutely unacceptable.