It works but do not bid on same keywords - Sooner or later you'll get banned. If you are serious about adwords marketing, try to build some account performance history in a single account.
I have been thinking of doing this. Can you tell me how long you have been doing this. If only recently then there is always the risk that it is a matter of time when they might run some checks. But if it isn't then it is great. By the way it makes me think. Are they allowed to store our card details and then compare it with other adword account payments card?
Hey people i am selling 300$ of adwords for $70 Paypal, it is not a joke i guaranteed the code is working i use the name of my business for PayPal so i am not a fake seller, if you are interest to buy it please contact me by mail at thank you.