Advanced Replacement Limbo

Over 2 months ago I filed a warranty claim for an advanced replacement of my left controller after only 2 weeks of having owned my quest. However, after 2 months they are still processing my claim and have yet to fulfill my warranty claim. 

 every time i contact them about why i havent received my controller i am told the same exacct thing over and over; that they are investigating the delay and nothing gets done.

does anyone have any recommendations about what to do because it seems like support does not care