Skid Plate Oil Filter Cover

I had an oil change the other day and am now missing the oil filter cover from my skid plate. The oil change place has thrown their hands up and assured me its not their fault. How do I get another filter cover without ordering a whole new skid plate? I cant find an exploded diagram or part number for that portion of it anywhere.

 

The place just called back and the place has ordered a whole new skip plate to put on there. the guy even mentioned how expensive the TRD Pro one was, so I know he ordered the right one.

 

Score!