Phone locked and disgusting customer service!!

My phone has been blocked for over a week now,it had been restricted because I haven’t loaded monthly data for 30 of which i wasn’t told by the sales rep when I purchased the phone!.I have called the call centre numerous times with no proper assistance instead the agents I was talking to were ****** rude and shouting at me. I told to load data on sim 1 and try to download the new policy and I did everything but still the phone doesn’t download.I have sent emails with the phone screen shots and still no reply.I feel that my rights as a customer have been violated.The consumer protection act states that the it’s the seller responsibility to give me full details about the product and all terms and conditions…now the sales rep sold me heaven and earth and we’re not truthfully ,back to the issue at hand I need urgent assistance with my phone being unblocked!!!