Rips customer blindly and no clue what is going on

Sunday 19 July I receive an sms from you about some new Customer 3D billing system. If I do not wish to be part of this group I have to let you know before 22 July 2015 and I must phone 082111. Today the 20 July I phone 082111 speak to a Latoya in customer care who has no idea what this is about, I get told after 27 minutes on the phone I must go to Voda World to sort this out, what if I live in Cape Town.? I need to know exactly what this about and I want an answer today. I am tired of you changing during my contract agreement to suit you. If you charge me more monthly for something I cannot get clarity on I will report this to the ombudsman. I find this very convenient that you send these messages on a Sunday and no one at your offices have a clue, nor is there anything on your website regarding this??