Terrible customer service from Vodacom

July 2016, was the first month of a 24 month contract which included a handset. To my understanding, 24 months later is July 2018. Retention dept is saying my last month for this installment is October 2018, which means I will pay over 27 months... I am tired of being pushed around from dept to dept where nobody has a clear answer for me. While I wait on hold for minutes on end . I would like to enquire why is it impossible to get a proof of start payment in order to verify my details. From the time I told them I want to cancel my contract all these issues are rising. My only wish is to pay off my phone by July 2018. Regarding my final date of contract, retention and accounts dept have different end dates for the same contract. How is this possible and can you please assist as I am still waiting for team leaders to contact me for answers, for the last two days.