splash protection
 

Hello all, I am new to the site but wasn't having any luck on my own. A couple days ago during a storm where I live the inner side of my passengers side splash guard (not sure what it's real name is) on my 08 a4 lost the parts that hold it up into place and is now dragging on the ground, it is still held in place by the out side (near bottom of pass. Door)
I was wondering if anyone knew where to buy a replacement, if it's a diy capable thing, and if I had to go to the dealership how much would it cost roughly?
Thank you for your time.