How do I fix the earpod plug-in

Hi

I have a chromebook and it comes with this case from school. I have apple earpods and I leave them pluged in whenever I put them in the case. When I took out the laptop, I unplugged the earpods and the part that you plug in was bent and uneven with the cord. When I got home the audio was very bad when I tried it. Then I tried pushing it back in by bitting it, then it broke off.

Can you please tell me how to attach it back on and have it still just like before?:)thanks