Out of curiosity, what service do you use for this? I'm looking to make a purchase I'd rather not have tied to my bank account. I was going to go pick up a visa prepaid.
The one that comes to mind for me is Privacy.com, though it's a paid service. If you just want to have a random CC to get past those "we need a credit card to continue" paywalls, I recommend a fake person generator. They usually include a realistically fake CC
It's worth noting that if you use privacy for free trials, they limit you to 3 cards linked to the same "merchant" (detected by the first transaction that goes through). After 3 cards you have to contact support to reset the limit for that merchant, so the single transaction cards are only good if you never want to shop there again because they immediately burn 1 use out of the limit.
Well... Yeah. Otherwise they wouldn't ask me for a credit card for a free trial of a service. It's always been obvious that that's their aim, refusing a single use credit card isn't some big "gotcha" moment here. Free trials only exist anymore in order to steal money at the end of the trial period, counting on the user forgetting to cancel. This is a known quantity.
Which is a shame. I prefer alternate rules which change the plus cards rules to allow plays such as more +2's added on top, color appropriate skips and reverses, wild cards and +4's.
Wild cards simply pass the draw to the next player. Basically every face card can be used to counter draw cards, though usually by adding more danger. It just adds a level of skill and planning over a game where getting randomed by a +2 or +4 is just a loss.
I had a gym membership, and just because of horror stories I used a reloadable credit card to sign up. I went every day starting summer 2019 and was making progress, and then Covid happened and the gym closed.
But they kept trying to charge me, and wouldn't let me cancel because I had to do so in person, and the place was closed. So I just stopped putting money on the card after using what was on it to put gas in the car.