I am very frustrated

I have been dealing with the Claremont branch since March this year regarding the cancellation of my membership. I have zero installments left and the last payment was made on the 1st of April 2021. I received a confirmation from the branch manager that no debit orders will go off my account, and someone from the head office (I do not want to mention names here) said I do not have to pay anything extra. on the 30th of April, they debited R625 from my account which I reversed with my bank and I contacted them immediately if they could please sort this out. I spoke with the account's manager who then said to me that they were going to waver the fees because my account is up to date, only for the Gym to send me a message today saying that I owe them R800. I have all the emails between myself, the Claremont branch manager, and the account's department (head office). I do not owe Ignite Fitness anything and dealing with them has been very frustrating. As someone who cares about her credit rating/ Score, I would be very mad if this does affect my credit rating.