Account billed after closure flag

I have closed my account, my club membership and hospital cash back insurance(sms received). I paid off my account after getting settlement amount and called and spoke to Phumlani Tatsi 07/10/2020 13:09 who has closed my account or rather put a flag on my account for closure and ensured me that no further fees will be billed and all is in order and the account will be closed after 36 days, and proof of anything can be sent (only call recording available as proof) only after it’s closed officially will it be sent. And now I received a statement with a balance of R296.38 what nonsense is that. Please can you rectify and close my account with immediate effect. I have written the date and time when I closed my account. I’m sure your calls are recorded.