Unfortunately I can't provide you with the URL'S as I never got them either however I can tell you what happened to my iPad.
I took it into an Apple store (Metro Centre, Gateshead, U.K) and the 'genius' said it would cost £200 for a replacement but I didn't have the money then. The iPad I have is iPad 2 Wi-Fi + 3G 64GB.
So I came back a week later with the money but this time we saw a different 'genius' - this one had a brain. He took a look at it and thanked us for being honest and said he would replace for free - he said that loads of iPad's dent in the exact same place.
Here is the email I received shorty after telling me the outcome:
Issue: Volume buttons do not function. Unit has a minor dent in enclosure however may not be related to the issue, so will replace as a good will gesture.
So if your local Apple store won't fix it - go to another one. It depends on the employee that you see.