I will like to lay a complain about cell c o had a contract with them for 2years which ended in june 2024 but still deducts R200 for what i dont know because i dnt have any agreement on that

I will like to lay a complain about cell c o had a contract with them for 2years which ended in june 2024 but still deducts R200 for what i dont know because i dnt have any agreement on that. I have send my complain on email nothing is happening.