Dissatisfied customer

On the 5 May 2021 I send an email to Cell C customer service stating that for my contract that is ending 19 July 2021 I'm not upgrading they must close the account then a consultant phoned to confirm that they have received the email and account will be closed. On the 26 July they deducted the money for the account that expired I emailed them on the 27 July 2021 asking them why do they deduct money for the account that has ended they must do it in writing that the account is closed an automatic reply was sent to say that they will contact me within 24 to 48 hours its now 5 days and no one has contacted me from Cell C can they please close this account I don't need it why does it have to be a struggle for Cell C to close an account