Vodacom N1 City dishonest

I went into Vodacom N1 city yesterday as my contract is coming to an end. I wanted a cheaper contract. The consultant wasted an hour of my time and kept trying to convince me that there was no cheaper package and that I had to take a more expensive package. When I pointed out the cheaper package in the brochure he told me that they are unable to downgrade my package in the store. This was a blatant lie.