Vodacom not honest

Beware the slick talking telemarketer from vodacom when your contract comes up for renuwal. I decided to take a simple 2gb data a month, keep my old phone contract. Got the invoice today and discovered i'm being charged for a handset and the discount is R40 extra. Prepaid would be cheaper but i was told i may not do that. I think its time to move my many numbers to another network.