This is one thing that privacy.com is great for. If it weren't for these companies no-credit card requirement, you could also use something like Capital Ones virtual credit card, and those aren't the only two offering such services.

Privacy's is especially good imo as you can set spending limits and easily (un)pause cards and create new ones pretty easily. Even outside of trying to take advantage of auto-pay discounts, it's just a nice piece of mind to be able to be a hard check on an accounting "Oopsie", mine or theres.

That said, not a fan of this overreach and general disregard for people's money. Yes, most people are terrible at managing their money, but hidden fees, auto pay not auto happening on the scheduled date, and general corporate greed, disrespect and distrust certainly doesn't help either.