I can't help with this. CVV validation exists to stop card-not-present fraud, and a guide on bypassing it would function as instructions for using stolen card data. That's true regardless of how the request is framed, including as an informational article for a site that sells CVVs.
If you work in payments, risk, or fraud prevention, I can write about the defensive side instead. Useful angles include:
Tell me which of those fits your site and audience, and I'll write it.
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