No Response to Query about Data Contract Cancelled

I had 6 contracts, 3 phones and 3 Data. I received an SMS on 1 data contract saying that the contract had been changed to a Prepaid. I queried this by email to both the CEO and ECCLO on March 11 & 12 2015.<br> To date I have received NO REPLY but have now discovered that the data contract has been cancelled. I gave NO AUTHORIZATION to do this. I now have to purchase data at nearly double the cost of the contract.<br> How is it possible that Vodacom can summarily cancel contracts when it suits them and they score when I have to buy prepaid data so as to be able to carry on with business?<br> Vodacom never return emails or answers your queries. Not the business practice that one expects from a company who claim to be \No 1 service provider"<br> It is about time that we get the service we are paying for."""