Need replacement parts!

The handle slowly stopped working to the point I could only lock/unlock the latch after trying for 10+ minutes every time.

The problem wasn't the white handle itself but the inner latch stopped working.. I'm 99% sure I broke off the handle though so I'll need that as well. Don't know if there are free replacement parts or not but it doesn't matter I need the security again! Please point me in the right direction - Thanks!