Vodacom is ***

My husband took contract phones some which have expired 2020 already he was told he only pays for 24 months and all the fancy data and nonsense that comes with it. They never mentioned anything about the contract changing to month to month after the 24 months have ended. I noticed the payment is not going down and we not even getting the benefit anymore. We don't even have some of the devices even but they still charging us. When we enquired they stated that we now on month to month. We requested immediate cancelation and refund as we were not explained all this and its false selling just to get a sale. They keep redirecting us to customer service and my husband struggles with language as he is a foreigner when I call they say he needs to be present. I only get home after 17:00 than they closed. When we took the contracts we didn't call a call centre so to cancel and refund why do we need to call call centre. The sales people were very great at selling but with wrong false and wrong information. They were even over charging us in 2020 and had the nerve to say our kids like playing with phones and dialled something to put changed from top up to billing and after investigating found their system automatically did it and had to refund us almost 3000. We don't want to call. We want someone at the store to assist as we bought it at the store. I've sent emails,called, Facebook, and store no one wants to assist. What can I do to get out of this mind the language ***