Free Xbox Live Codes

[wootpeng]

Hey, I currently have an Xbox Live Gold Subscription so I can't tell whether or not these Xbox Live 48 Hour Codes work or not... If someone could use them and tell me if they work (or even if they have an already used error message) that would be greatly appreciated..

KPFW6-W6JD2-WY488-CKV7T-Q8D3T
TV8PV-3V6MY-VCVF8-2XRTX-GFQ7D
K8662-K2JY6-793JD-FX36H-F838Q

I'm posting these because I have over 100 and would like to know if they are expired or not. Thanks in advance.

[Zore]

They do not work, thanks for wasting my time >.>

[wootpeng]

They do not work, thanks for wasting my time >.>

Does it say they have already been used or invalid? Can anyone else try one?

[Zore]

No, it says they are not valid.