No right channel through headphone port on some headphones?!

This is a really weird one. On Apple EarPods, it sounds completely fine and like it should. With Philips Headphones, it is alright, but if I twist it at some angles there's only the left channel. Finally, with my new Brainwavz earphones, only at an extremely specific angle do they work?? I can confirm that it is only my phone that is having these issues as well... all 3 earphone/headphones work fine with other devices.

I have tried cleaning out the port with rolled up sticky tape, and washing it with tap water. Neither has worked so far...