Worst service

Since I received my upgrade my handset has been with Cell C direct more than it has been with me and yet im paying the contract on a monthly basis.My phone has been switching off for days and my phone doesn't charge as it should.I have sent it back twice for repairs and after the second time the same thing happens and the lady at repairs had an attitude when I requested to speak to the Manager,as she wanted me to send the phone back again for repairs for the third time.After I explained to them that Nokia locally told me that it was a factory fault and my Nokia 1320 should be replaced,Cell C repairs sent the phone back to me again the same.I asked to that management should make a decision now as I am more without my phone than I am with it and I want to get a replacement phone locally whereby I do not have to sit without a phone everytime for more than a month for the exact same issue.It is frustrating to deal with repairs and yet customer care said that it was escalated to Management and still have received no phone call to this regard,is this the service I am receiving now?