Cancellation of tele marketing phone contract.

I have a contract which a pair of telemarketers brow beat me into saying "yes" to in January 2024. Only later I fought my way clear of their "mobi" system. I have a paid up phone probably 8 years old. It is an LG51-60. Fully paid up. Only later I discovered that when I could compare detail, found my existing monthly charge went from R310.pm to R342.65. Worse still, my gigs plummeted from 40 day time and 20 night time to 20 BOTH DAY AND NIGHT! I find this ******ianst and completely unacceptible! Consequently I DEMAND THAT THE CONTRACT PLEASE BE CANCELLED AND THAT I BE REFUNDED I FULL SINCE JANUARY 20 24! The reason for the delay on my side is mainly due to my 35 year old grandson falling from a 9 meter tree and sustaining a cracked lower spinal plate requiring 5 pins and two crushed heel bones each needing upward s of 9 pins each! Yes, this is NOT Vodacom's fault but it has been exceedingly stressful for an 84 year old grandfather. I look forward to your early cancellation notice and refund in full as soon as possible.