Vodacom customers service is the worst

I saw a contract deal on the Vodacom website which I wanted to upgrade to. I phoned yesterday to do the upgrade and was told sorry thay deal has expired. So I questioned the operator, how can they advertised a deal but it has expired. Sorry they haven't updated the deals yet. I looked again on the website today and the same deal is still advertised. This is very bad from a big company like vodacom. The same thing happened last year. I'm going to take this up with the consumers act. Vodacom gets away with everything. It is the customers right to get a contract that is advertised. Vodacom is most probably the worst cellphone network.