How do you pay for AI tools: bank cards, virtual cards or crypto?

How do you usually pay for them regular bank cards, virtual cards, crypto or another method? Have you experienced declined payments, subscription restrictions or problems managing multiple renewals?
I’m especially interested in what works reliably for people using several AI tools across different accounts or projects

Bank cards work good what is the issues you find for finding other sources. Just maintain the balance in your account that's enough

virtual cards work fine

Using virtual cards work without Amy iusse