Amazon has the Xbox Live 12-Month Gold Subscription Card 52M-00069 for $36 with free shipping. The online code is the same price. Code is redeemable for a 12-month subscription to Xbox Live Gold. Microsoft Store has the card or downloadable version for the same price.
So if i purchase will it extend my current acct. by 12 months ?
Yes, if you enter the code on the card it will add it to your current balance.