changing myPREPAID package to some flexi 200

I Get sms that I have changed my prepaid package back to contract......<br> I NEVER done anything of the sorts.<br> What the hell is Vodacom playing at!!! I never gave any authorisation or asked for anything to done to my prepaid account! when speaking to the USELESS PEOPLE the tell me I must phone and sort out their issues, VODACOM ARE PATHETIC AND USELESS... The cheek that I must phone and sort out their problems they are making on my prepaid number. INCOMPETANCE AT ITS BEST. When speaking to the useless consultant I get told she is trying to help and she doesn't let me get a work in edge ways!!! I want the recording on where I have accepted the and spoke to the consultant telling them I want I done...Vodaom is a bunch of *******!!!