Vodacom disappoints again

I contacted Vodacom in December several times about a new option called power flex, i wanted to buy the option. The option on the website would not allow for me to use my simcard. i called vodacom more than 5 times, and they told me i could not use my number, some of the operators did not even know about the plan. I finally spoke to someone to who said my simcard was not completely prepaid, and that i needed to have it completely prepaid to have this plan, i agreed, and they said i had to wait for the 1st of January for my sim card to be prepaid. i waited. In january i called, to have this plan in effect now that i am on prepaid, they told me the plan doesnt exist, they told me about another plan, which i took, a plan of data and airtime, and they told me it will be activated on the 1st of feb. It is the 2nd of febraury, im checking my account, nothing is activated. What does a person have to do to get proper service.