No assistance, no feedback

I resigned on 30 june 2019.sent my docs to Gpaa and it was received by them in April 2019. I was told at the end of May that they picked up an error after being told prior to that that everything was fine. Its now the end of July 2019 and STILL no proper feedback. Every time I call, Im told conflicting stories. My file seems to be floating around in payments department, then back to membership dpt, then processing dpt, then back to payments etc... i was told 2 weeks ago that it was sent for tax directive and to call back for payment date. No date was given, just more stories about different departments. I have emailed a complaint and received no response. Is there ANY PLACE I CAN LODGE A COMPLAINT AND ACTUALLY BE ASSISTED??!!! This is ridiculous and frustrating. There's no proper explanations and i keep being sent in circles, waiting on the phone for long periods of time due to "high call volumes" only to be given another story and no set line of procedure explained. Please assist