Stop false advertising

I was approached by the person at Vodacom responsible for notifying me of my contract upgrade. They stated that i can upgrade after 22 months. After we discussed and ordered the new phone, they only told me that there were still handset installments outstanding for the last 2 months. I questioned this as I have never heard of this - all other service providers let you upgrade without penalty after 22 months - but not the giant Vodacom.<br> <br> I told them to cancel the upgrade immediately. Why does Vodacom do this? Be upfront and stop this false advertising! I would really like to move to another service provider...