That's... pretty much how every free trial works? Try signing up for a free month of Amazon Prime or Netflix and see what happens. The entire point of the promotion is retention.
replyAdSense doesn't present itself as a permanent service you stay subscribed to.
reply(Or at least didn't at the time I've tried to use it. That may have changed, but we don't know when the GP tried it either.)
It wasn't a subscription. My expectation was that it would simply stop once it hit $0. Not really here to argue about it. The tldr is I don't trust Google with this stuff anymore.
replyI wonder what you thought putting your credit card on file was for.
replyWait till you try aws!
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