Repair Centre

November 11th 2014 I have upgraded to a Samsung S5 handset. Ever since, the handset has been sent back and forth to a Vodacom branch for repairs (fault: receiver of a call made from the S5 can not hear the caller at all). First repair done was a speaker being replaced, second: the main frame replaced & the third time after being assessed nothing was done and handset returned in the same condition it was booked inn. Once again the phone is undergoing an assessment ...????? For the last 7months that phone is with Vodacom Repair Centre and the fault remains unsolved !!! Vodacom can not assist in cancelling my contract let alone replace a piece of junk call S5 handset.