Poor to no service

On 8 December 2014, I took my Sony Experia cellphone in to the Vanderbijl branch of Vodacom for a charging problem. On 5 January 2015 I was notified my phone is fixed. Upon my arrival, the phone still was not fixed, and I was told to pay R250 to have the charging jack replaced even while the phone was still under guarentee and insured. On 28 January I received a call stating there is work to be done which will cost R1050. I told them to rather replace the phone under the insurance, and I was told that the phone has been taken off the insurance and guarentee has been discontinued on 19 February 2015. Now I am expected to pay a contract while I have no phone, because I will be penalised if I cancel the contract before its end date in September. I am extremely upset with the poor level of service rendered by Vodacom and their dishonesty.