A:AnswerYou will need to take the case off and ensure that the switch lines up with the case. The same happened to me and just lining it up allowed it to work.
A:AnswerIt is a great warranty service, if the case gets damaged or anything they will send you a new one for free. (They do ask for pictures) You only pay for shipping and handling.
A:AnswerVery well to the extent I can place the phone on its back and not worry about the phones getting damaged or banged on hard surfaces however it's protection is very limited.