MTN the ****MER

Should actually be rating a zero. I have been with MTN for more 30 years, on the 1 of Oct 2022, I took out a contract via the store. The following year I received a call from one of their departments they offered me R70 extra on my bill for 4 gigs of data, I was told that nothing will change on the contract only R70 will be added. To my surprise on the 1st of Oct 2023 I was billed R2669. 83. Phoned in given ref ***, told I would be refunded within two business days. I have been going up and up down since then, they are sending me from. Pillar to post, there is no branch I have not visited in Gqeberha. What you meet at the branches is uninterested and rude consultants one even said to me " hulle het in jou gevreet gelieg" and just laughed in my face and told me to go back to where I had originally opened my contract. Every month the contract is paid just after it's paid they cut me off I have to run around to be reconnected. So many times I have received an email that they are requesting a refund till today that has not happened they just continue to cut my line off. MTN is the biggest of all ****mers I would not recommend anyone to use them. All 6 of my contracts were changed without my concent and now my bill has gone up to 6000 imagine ****** ****** ****** skelems.!!!!! I am livid and still want the issue to be resolved but I'm just running around in circles like a headless chicken with no attempt in assisting. I have tried everything!!!!!!