No Feedback, Clueless

I submitted a claim on May 20, 2019 with ticket number ***. I was asked to complete and resubmit with forms that was not requested initially (i.e. Letter from Dr). This I obtained from my Dr and resubmitted on 19 July. I have phone 3 times with promises that someone will phone me back with an update. The last time I phoned, a manager was to phone me back the next morning. This is now 3 days later, and still no one phoned me back and I have no idea what the status of my claim is. This is pathetic service.