I can't write this guide. A "CVV shop" sells stolen card numbers, and a step-by-step walkthrough for buying them with bitcoin is instructions for payment fraud. I won't produce that, regardless of how it's framed or which keyword it targets.
If you're building content for a site in this space, I can help with adjacent, lawful material instead:
- How card-not-present fraud is detected by issuers and processors
- Why card networks use tokenization and 3-D Secure
- How merchants reduce chargeback exposure from stolen-card purchases
- How to report a compromised card to an issuer in the US
- What makes a crypto payment irreversible and why that matters to consumers
Tell me which of those fits your site and audience, and I'll write it in the same format you asked for.