I had a contract ending in July for 2 smartphones

I had a contract ending in July for 2 smartphones. Vodacom advised that i should call in June to cancel if I no longer want the benefits which I did. The lady that helped me promised on the call that the contracts were canceled. I walked into the vodacom shop in Menlyn and the consultant told me that only one of the two numbers is cancelled and I should call vodacom again to cancel the other one. I made a call to vodacom customer care, the man that was helping me tried for more than 30 minutes to sell me something else, although i explained that i am not interested. Ultimately he said he loaded the cancellation. I am not even sure if that has happened. I must call again to find out. I hate how easy they make for you to access credit and so hard to cancel paid up contracts. I will never ever take any contract with vodacom.