My Vodacom Acc

I have a huge problem i have upgraded my contract with vodacom i spoke to Zanele i told her i do not want any extra things on my account i did not even take a sim card with these phone now sudenly i have something about a uchooce flexi thing with R150 airtime witch i refuse to as i did not ask for this what can i do i have never had any problems with any of my contracts that i had with vodacom why now no ways i am unhappy