Obviously someone has an exploit of adwords that can add credits to accounts without paying for it, and it appears to involve closing and re-opening accounts wi

Obviously someone has an exploit of adwords that can add credits to accounts without paying for it, and it appears to involve closing and re-opening accounts with expired credit cards. This point is so obvious that he doesn't bother explaining any further. There was a billing mistake in his account, so therefore there must be an exploit of some kind. There are other explanations for a billing mistake, but apparently they don't bother consideration.