1. Go on Shpock and search for Xbox
Giftcard and find one with includes the
back of the Gift Card, (most of them.)
2. Look in the bottom left of the Xbox
gift card and you will find the Serial
Number, copy that down in a Notepad.
3. Go to Xbox live support and tell them
that you have accidently ripped the claim
code part and can't redeem it and say
that you heard the Serial Number can help
get it.
4. They should ask for the Serial Number,
just give it to them and SE your way
through and you should get an Xbox
Giftcard.