Pathetic Customer Service

I had a cellphone contract with Vodacom approximately 3 years ago. This contract was closed and I have had no dealings with Vodacom since. Recently I learned that Vodacom had not closed this account on their end, and this has impacted negatively on ITC. I have been calling Vodacom every day since the 30 October and I receive the same BS story of ,"the closure/settlement letter will be sent to you in 48 hours". Its now been 12 days and I still have not received anything. For a mobile communications company Vodacom has been the absolute worst in communication. I should not have to phone daily to rectify a mistake on Vodacom's part. I should not have to wait 12 + days for an email. I should not have to phone numerous times a day because the customer care line cuts off/ has issues. Your customer service is pathetic and your processes seem outdated and in need of a rework. I WANT THE SETTLEMENT/CLOSURE EMAIL SENT TO ME TODAY!!