Empty promises pathetic service.

On the 24 July 2018 I have written a review about the shocking service I received from vodacom ''the number one network in SA'' clearly not. My Problem is still not resolved the only thing that happen since my problem started the first time is empty promises. I have follow the chain of command but this clearly also means nothing. I spoke to store manager, the I spoke to Natalie form the franchise she is someone imported and I was promised this will be resolved asap then I spoke to Theo with a big chip on his shoulder about my problem and he had all the answer how to resolve it, then he told me that Natalie have emailed Sandra at the service center and that they have escalated this matter and that they will give me a call with more information, then after 7 days I got a sms telling me my phone is ready for collection get to the store they tell me a software update have been done after I told every single person I spoke to at Vodacom that I have already done the software update and the problem is still the same. I phone Sandra and I was told no I must book the phone in again this is this acceptable ??? This is going on from the 06/05/2018 and is still not resolve is my request so unreasonable i just want a phone that works that is all. I am paying a hand set installment for what why must I pay for something that I not not use or receive the benefited of? I did not book my phone in again for the 5 time. Remember they said the issue is resolved they did the software I did not even have my phone back 30min and I still have the same issue I have the proof as well scene shots and every thing but my phone i 100% according to vodacom and there service center. Shocking Shocking I do not now what to do any more I just want what I am paying for.