Bad service from vodacom

I have a contract with vodacom for almost 2 years which Will expire in February 2016.In this time my phone went in fourth times already and every time i am sitting with out a phone for 3 weeks.In this time my wife was pregnant and my baby was born and in hospital for 3 weeks and i were sitting without n phone.So in total i was vodacom was deducting money from me for 3 months for a phone i could not use(3 weeks X 4 times) that was in for repairs.I complaint at cape gate branch and don't help me then i phoned customer care and they could not help me.so where to know seems like nobody wants to help me.this is the service vodacom is giving to its clients.i am very unhappy with the service i have been with vodacom for 10 years and have 2 contracts and have never missed a payment.If this is the service i am getting from vodacom i Will rather get me a other service provider.