Cancellation of Contract

Good Day, I am really getting frustrated trying to cancel MrP Mobile contract. I took a 12 months contract in August 2021 and was being loaded with airtime at the beginning of every month. However, I am no longer interested going through with it. I called around 08:35 on the 16 August 2022 trying to cancel it and was told to cancel today (30 August) as I will be charged cancellation fees for those remaining few days. I tried calling the cancellation department today and was on hold for over 30 minutes. Funny enough, I tried another department and my call was put through quicker. I spoke to Smangele Mkhize who could not assist and provide me with answers nor transfer me to her supervisor. The level of professionalism in your call centres is shocking. Why is it difficult getting through to cancel a contract but for everything else your call centre seems to be functioning well. I just need my contract cancelled ASAP. What is so difficult about doing that? Please get cancel my contract as I no longer have interest in it.