I can’t make calls or sent smses

Vodacom it’s me again, I have been complaining ever since I took a contract with you last year November. The contract stipulates that I should be receiving airtime and data on monthly basis, but to my surprise none of that is happening. I can’t even purchase data or airtime. I had to buy another phone so I can be able to make calls. You are deducting and increasing monthly payment as you please. What am I paying for? I would like to cancel my contract. I’m not happy with your disgusting service I just want to part ways with you so I can have peace in my life. You have no regards for your customers.