Change my Account without asking me

<p>On the 14th of September a lady from Vodacom call centre 140 phoned me and told me I am not using my sms bundle (200) and that I am spending alot on data during the month. She offered to take the 200 sms of my account and give me 3 gig of data in its place. She said that I will be able to carry this data over to the next month and this will start from the 1st of October 2016. Well the biggest shock came when I run out of airtime and data on the 6th day of October 2016. I have an open contract and not a topup contract. This useless women changed my account to a R350 talked time and they just took that R350 and another R110 talktime to pay for my data. When I signed my contract Vodacom gave me R200 minutes 200 sms and 1 gig free data. When I phoned Vodacom on the 6th of October 2016, they could not help me sort this out. I want my refund R350 and R110 back on my account today. Change my contract back to the way it was. I will now take this matter to the Complaints Board and the Onbudsman. I did not ask for this!! How dare you change my account to suit you?</p>