I know it's probably difficult to cater to the hobbyist/personal users, but I'd be willing to enter a credit card and spend money if I had confidence that my services would just stop working once I hit my personal budget.

Without any kind of spending limit, I'm stuck in a weird limbo. I can afford $50 a month, but I can't afford $500. And the fact that I have no real control over what I'll be billed means I'm spending $0 instead.

I am also waiting for that. This cloud provider seems great for my needs expect this part. Vercel.com and Railway.app already support it, why they do not?