Inspiron 5559 Internal Speakers and bluetooth speakers work fine

Once I plug my headphones in or my hearing aids bluetooth device in, it all goes south. The internal speakers continue to work as does the bluetooth, but nothing is coming out of the headphones. Since I was once in IT, this problem is unique to the jack itself. Either the jack lifted up or was pushed back and never properly tested. The hook, I just received this computer 3 weeks ago to replace a faulty HDMI out port. I was told that there would be an open ticket so if I had any problems with this computer it would be attended to. Unfortunately, that is not the case.