MTN: daylight *******

I have a 3 year cellphone contract with MTN and had a 1 year WIFI contract with them. My premium was put in one package but with different amounts. My Wifi contract ended in May 2024. I had a balance of R1500. Last week I went to Mams Mall Mtn to settle it and then start a 'month to month' Wifi deal. The consultant told me that I had to pay R5000. I tried to explain to her that my contract had ended and didn't have any connection. How was it possible that I had incurred that balance? I then asked her to give me the balance for the monthly cellphone balance because I was behind with payment. (Due to the WiFi) issue. She told me that she couldn't separate the two accounts. Please help get my life back with a Wifi connection and cellphone balance