When you go in, do as Rogue says. But, also bring in the paper showing the date of purchase, and the date of each time you called or stopped by the dealer to ask about the repair. Be sure to document EVERY time you have asked about the repair in the past, and continue to do so until it is done. Be VERY forward with ALL the dates you have inquired about the repair.
Either they will get the idea when you show them, or you will have proof for when you go to customer service.
Also, wherever you can, document who you talked to about the repair and parts.
If you go and tell them you were there April 2nd, April 12th, May 7th, May 24th, Jun 5th, and July 8th, then they should get a clue.
This way there is no confusion. You can show how the little irritation became a problem.
Also, on the document, track how much time you have spent on the phone, and spent driving back and forth.
RobertN in Shingle Springs Calif