I wish expiring credit card numbers existed to kill this sort of online quasi-scam (let&#x27;s call it what it is).<p>I&#x27;d like to say, &quot;$0.99 a week for 4 weeks? Cool, here&#x27;s a temporary number that expires in exactly one month. Please cut my subscription off after then.&quot;<p>Of course, I suspect that the benefit of the entrenched system in the US for everyone but consumers will guarantee that this will be really difficult to accomplish in reality.