Inconvenience with a contract

Good day

My name is Zandile Phungwayo, I have a contract with MTN, so I had purchased a deal that I had to pay 230 every month for a router and 60GB day and night data. On the last week of January 2021 I went to a Mtn store at Southgate Mall. I was assisted by Monde to purchase two laptops, he promised to get back to me as they only had one laptop but he didn’t get back to me to inform me that I was unable to add another contract for the laptop.Unfortunately I was only able to get one but as an upgrade not as an additional contract, I upgraded my data sim that I pay 230 every month to get 60 GB. What Monde failed to inform me about the upgrade was that it will automatically cancel my 60 GB data and give me 2 GB of data every month. I had specifically asked him to confirm that if I upgrade I’ll get the 2 GB data as an additional to my 60 GB and he confirmed yes. It doesn’t make sense that I would take a deal of 2 GB per month were as I have a deal that gives me more data which is 60GB. I called in today on the 17th of February 2021 to make them aware of the inconvenience and I spoke to Noma who told me there is nothing they can do unless I take another contract sim only to get the 60GB even though I had specifically told her I was not informed of such. Please assist as I want my 60 GB plan back and I’m not willing to take an additional contract to get it because that’s just more money coming out of my pocket. I won’t get inconvenience because of failed incompetence of Monde to inform me of what will happen when I upgrade my 60GB data sim.

I filled a complaint on the 17th of February 2021 but I haven’t gotten any response whatsoever