Contract cancelation

I would never recommend Cell C to any human being in this whole world, I took a phone contract deal from cell c 12 December 2022, I paid the contract until I finished paying it, December 18th I called Cell C asking them to cancel my since it my last two months of the contract that will end February. I spoke to one their consultants, I asked her to sent the final invoice in January because is the end of my contract. She gave me the 084143 number ask me to call that number, I did that, I spoke to another consultant she said to me I must send an email to cancel my contract. I wrote an email on the 18th December 2024, and they responded on the 19th December 2024 telling me that they won't be able to help me because i didn't send my ID number, I responded the very same day and sent my ID number. Guess what? Cell C didn't cancel the contract deal until July 2025. They have debited the money from my account until I block their debit order, now they took me to their lawyers accusing me that I owe them. I have dozens of emails and calls trying to talk to them since from 18th December 2024. I'm so frustrated with their service, their consultants are not doing their job at all. I'm so disappointed and hurt because this affected my credit score so badly. Can someone please help me get this resolved. I have proves where I was communicating with them each and every day. Cell C turned my life into a nightmare 😫 😪