Lack of customer information and assistance

My phone was handed in at voda world midrand in December 2015. I sent it for repairs and it was a brand new Sony xperia Z5. I had hoped to bring it back with me but it took your expert technicians almost 2 months to sort out. I'm from kzn and I can't fetch the phone that I sent is as a obf I was called to fetch my phone but I complained that it was impossible and I was told that they would try to deliver it but they couldn't. I phoned the call centre cancellations n spoke the lady-got name- about cancelling my contracts she said that Vodacom doesn't keep records of customers and they must go to the shop were I bought it to find our more.... i find this impossible. .. how can Vodacom not have records of their customers and how can they be unwilling to assist a customer that can't fetch a phone that they took a month to repair. Further why should I pay for the contract whrn I can't use my phone<br>