3 months going and no Help!!!!

Nedbank takes over 3 months to solve a query, I have been trying to have my query resolved since March 2018, eventually I opened a formal complaint at the bank 22 August 2018 and to date I still dont have any answers. The consultant that was assisting me just stop returning my emails and had no clear reposponse for me, I recieved no updates and had to keep calling to follow up. To date my complaint has still not been resolved.