I've got a XBOX LIVE card which has a code for 3 months' use. Will sell for £12.
Will email the code immediately over after payment has been received (and cleared) for free. Or the code card can be sent by post if wanted (but will cost extra £1.20 for Signed For postage).
Main preference is payment by bank transfer (or over the counter payment) - I bank with HSBC. Otherwise, payment by PayPal (gift) is fine too.