Vostro 5515 Network port bracket broken off

i have a relatively new laptop, with a broken off network port bracket.  its the flap that holds the RJ45 cable into the laptop.

Alas, my spaniel dog was excited and pulled out the cable snapping the flap that holds it in place.

does anyone know where i can order one from.  i have tried dell support, they just close down the support call, without any help.