Damaged filter thread

[TeenTog]

Hi, all! The other day I happened to drop my 70D with 18055mm IS STM on a neighbor's driveway. Thankfully, the camera is OK, however the front filter thread on the lens is not (see attached photos). Obviously, since the section of thread is plastic and has been separated from the rest of the filter thread, I cant exactly bend it back. Has anyone had this happen before? If so, how/where did you repair it, and what was the cost?

Thanks,
Hydrapenguin

P.S- I know that it's a cheap lens, but I'd rather repair it than buy a whole new one/upgrade.