Wrong billing subscription not cancelled

I was promised a 3 months free trial for virility when I joined the medical in July 2023, in August 2023 I sent and e-mail asking for my subscription to be cancelled the email was sent to the same lady by the name of Babalwa who assisted me with my medical aid, 2 months later I'm still getting communication that I need to pay for the vitality now I'm being told that I owe for 3 months,when I call the cancellation department I spoke to the guy by the name of Lifa who was full of himself,very arrogant and disrespectful, I tried taking this matter to his superior still up to this date the matter has been not resolved they're taking me back and forth it's seems as if this matter won't be resolved because no one is saying anything to me I'm the one who's busy following up with no luck...How can I pay for a subscription that was supposed to be cancelled, now I'm being billed because of their lazy consultant who didn't do their job properly I'm the one who must take the knock ,the very same Lifa guy told me that unfortunately I'll have to pay there's nothing he can help me with , honestly this is so unfair and unprofessional even thinking of cancelling my medical aid with them.