Poor service!

Dear Hello Peter<br> Can you please help me to cancel my contract with vodacom, because I am really sick and tired of the poor service I am receiving from them. I took out a contract with them I think it was round about 5 months ago. It was a Sony m4 aqua, the phone was sent back and forth to their repair centre due to technical errors that the phone experienced. The phone was finally OBF approved and they provided me with a new phone about two weeks ago. The new phone experienced the same problem that the first phone experienced, can you please assist me on this matter because I'm really tired of this poor service which I am paying for monthly. I'm paying for a phone that has never been of any use to me<br> Jobnumber: ***8