Also check nostr:npub1mftv2j67vayavkks8rqev3u8jjhefe86tf80msstfxvpunk9vmps6prkl3

https://juraj.bednar.io/en/talk-en/2023/07/10/how-to-find-someone-to-buy-btc-from-using-vexl-app/

And here is info why it's important to avoid using the banking system to purchase btc

https://juraj.bednar.io/en/blog-en/2023/06/15/how-to-give-bitcoin-back-its-peer-to-peer-character-and-use-it-to-its-full-potential/