Struggling to update banking details

I have (without success) tried to change my banking details so my debit order can go off my new account. I called and spoke to Thuthula Sikiti on the 17th of October and completed the mandate, sent this along with confirmation of banking details to her. Low and behold, my old account was debited and I got charged admin fees for the returned debit order. I immediately emailed her and she said she sent it on the admin department when she received them. It is now the 9th of December and I have sent 3 follow up emails to Zady Cupido asking for feedback on this and to date I have received no response. I furnished the necessary information timeously and clearly my business is not needed. Not only do I have to pay extra bank charges, I have had no access to the gym either. Can some PLEASE get back to me. This is simply unprofessional and not the type of service I expect from an organization like Ignite!