MTN contract is a ****!

Did a renewal on my Mtn contract through CellNetwork (done by Vireshen Bhim) 3 months ago and was promised a cheaper package with more data. Something seemed off as the contract that was loaded was for less data. But when I questioned it with Vireshen he said the extra data was loaded as free recurring bundles which was true. They were free for three months and now suddenly I am being charged nearly double the agreed amount of the contract. My assumption is that these bundles are now no longer free and I am being charged for them. When you sell a product you should keep to the terms of the sale! I am seriously considering ending my contract with MTN and going to Vodacom. So sick of being ****med!