Disappointed, regret contract with Vodacom

After promising transparency to me the lady and gent that assisted me with a contract phone, gave me half information, on what I would pay monthly. It is actually double. On trying to make plans to return since we all did not, that is 3 of us, know what would be the total to pay, it is impossible. They cared that I just did a contract, no advise, misled with total contract amount.