charged for a free product

I upgraded at vodashop rosebank to my flexi 200, with the contract you recieve two handsets and a free my flexi 50 contract. First i was told the free contract would take approximately 3-4 hours to activate, and the next day it was still not working, I contacted the call centre and was unassisted because of lack of product knowledge from vodacom call centre. I contacted rosebank and sales consultant pricilla was able to activate free contract. I am now receiving text messages from vodacom on the free contract to remind me my account will be debited a total of three messages . I have contacted vodacom again to query, but here I am....rude agents, uninformed....vodahell