Cancel the data as I asked you because finished paying for the phone, I don't have money for your data and I told ypu to stop it as I can buy the little I cam afford

I had a cellphone contract from March 2020 until I finished paying this year April and I asked them them I won't be taking anything since financial I'm struggling and that the R127 data they must cancel and yes they agreed to cancel my contract and put it on premium and that July 10 will be last last payment of their data which I didn't even need...and to my surprise lat week they told me that I have to pay an amount of R140 for the data that I'm owing or they will block the number of my contract. Mtn please cancel my contract I told you I don't have more money to pay as my contract has ended but why are you doing this ...