False advertising by Vodacom

So after Lennon was not so keen to assist, I requested a cancellation. My order was cancelled and when I re ordered the package, it was confirmed by vodacom, however, at checkout, the system changed my order from a 2GB plan, to a 1GB plan. I requested for a callback and Thobile, who was assisting me, advised that the advertised plan was a system error. I was confused and as soon as I advised Thobile of what had previously happened, she said she would transfer me to a department that would assist me, however, Thobile cut the call. I have not received a call back from Vodacom since then.