Awaiting feedback from Vodacom - Day 3

This is day three that I am awaiting anyone from Vodacom to contact me regarding my dispute with them. It is three days to Xmas and I am still without a phone. here is what happened: On 19 Dec 2017, Vodacom cut my phone as they claim that I owe them R23 727.00 of which R18 000 odd is for data. I have been a loyal Vodacom client and am on the premium package for R2000 a month with unlimited calls and 5G data per month. There was no extra usage on my side. This happened to me last year as well over the Xmas period when Vodacom charged me R16 000 for apparent data usage. I contacted the The Complaints Commision and the fees were reversed. When this incident was clarified in 2016 I requested more than once that there should be a limit placed on my account where data is concerned as I do not want to go through the trauma again. A year later Vodacom does the same only they increased the amount. I feel such anger towards Vodacom as they leave their clients without communication over the Xmas period. This is truly appalling!