A member asks about options when a credit card is about to be declined for exceeding the limit.
[Link to quote
"Can i have google bill me early? "
IntegraGsrBalla - I'm sorry to say that, at present, early billing upon request is not an option due to the automated nature of the billing system.
Good idea though, which I'll pass on as an additional vote for such an option in the future.
I hope some of the other suggestions made above will work for you. And, as danpeg mentioned, a credit card decline is not a big deal in the sense that it doesn't give you 'negative points' or anything of that nature.
I do know, of course, that the real issue of concern is to keep your ads running.