Mtn keeping my Money and Wifi hostage

I have a month to month contract on a router. I didnt honor my debit order as i forgot to move money over. I didnt know that they will keep my money and data hostage. I paid on the 4th and phoned them and were assured it would be working again the next day. Today is monday and still not working so i phoned again. I was informed that i will not have internet until 1 August because i paid late. New data was supposed to be loaded 1 July but because i paid on the 4th i will not have data until 1 August because they only load on the 1st. They dont want to refund me and they dont want to give me the data i paid for. I took the monthly package as i am not getting paid always on the same day. We are not living in the 90's where they can only load something on 1 specific day. It is paid. Give me my data. And the lady Okuhle was not very nice and refused to let me speak to someone else. I am really disappointed and feel discriminated against because payment was 4 days late nor i am without wifi for a month. Its like being treated like a toddler