Here's one email I got back, as you can see I am fighting with them trying to get my warranty extended.
Dear Mr. XXXXXX,
Thank you for your reply.
The 30-Day Risk Free Guarantee period comes to an end on October 25, 2008. It is not possible to extend the 30-Day Risk Free Guarantee beyond October 25, 2008.
I apologize that you are facing the extreme heat issues with the HTC Diamond handset. To check the problem with the handset, we need to perform few diagnostic tests on your PCS Phone, which is not possible through email.
A physical check is only possible by visiting a Sprint Store. Our
in-store technician will be glad to perform all the required tests on
your PCS Phone to resolve the issue. If the problem can be rectified,
it will be done immediately at the store within your visit.
You can locate a Sprint Store near you by clicking on the hyperlink given below:
http://www.sprintstorelocator.com
Alternatively, this phone is under the 30-Day Risk Free Guarantee you have the option to exchange the device for another one.
Further, the returned devices must be:
-Undamaged
-In their original packaging
-With all accessory items, such as manuals, packaging, battery, charger, ear bud, clip, and so on
I request you to visit the nearest Sprint Store and get the handset returned and get the new phone.
The phone will be replaced free of cost of the same price. In case you opt for the phone having a higher price than the HTC Diamond then you need to pay the difference price.
I have made a note on the account so that the specialist assisting you will have a point of reference.
Thank you again for contacting Sprint. We appreciate your business.
Sincerely,
Marsha V.
Customer Service Specialist
Sprint