No response after

I logged a complaint with Edgars directly on 18.04.2017 regarding the service fee charged after incorrect information provided by the teller. This was resolved 12.05.2017 by Ntombi Khohli and the service fee was removed. After this I noticed that I'm still being charged the service fee. I contacted Edgars in June after which is was escalated - no response. I e-mailed again on 01.08.2017 - Portia Kolobe from Edgars responded on 02.08.2017 that my complaint has been escalated. I e-mailed again on 16.08.2017 and 21.09.2017 - the auto response always informs that I will receive a response within 48 hours. To date, I am not receiving any further feedback and I really think the way my complaint is being dealt with is unacceptable as there is no feedback repeatedly.