I think a pin inside my headphone socket is broken [Oneplus 2]

[Thasausbaus]

So, I noticed the problem today, putting my headphone plug into the jack, it didn't fully go in, I thought there was some fluff or lint in there until I looked in there with another phone's camera.

Now I think a pin on the inside is broken Picture

The headphones still work but it keeps coming out with even a little bit of movement and doesn't do the click when I plug it in. Picture

This is the most it goes in, tho it should go in about another 1/4mm or so.

Is it really broken or is it as it should be, can I do something about it or fix it?

Additional pictures of the inside 1, 2 , 3
Also, how could that have even happened?

 

[MaikuTech]

Try another headphone to make sure its a problem with your phones dc jack.
If it doesn't click in normally like it usually does, depending on which store you got it from and the warrenty.
I suggest you take it to them and let them trouble shoot it and fix it or find a local phone repair shop.