Any unused money rolls over to the next month, according to Google [1]. I've been using it for months at $15/month and I've never seen it not use all of the mo

Any unused money rolls over to the next month, according to Google [1]. I've been using it for months at $15/month and I've never seen it not use all of the money. I do use the internet constantly at work, though, and see many websites. [1] https://support.google.com/contributor/answer/6182619?hl=en&ref_topic=6182570&vid=1-635787105116485323-1411417406 https://support.google.com/contributor/answer/6182619?hl=en&...