Awazon has no single permanent address and no clearnet site. It publishes several onion mirrors, all resolving to the same market. Copy a current one from this page, open it in Tor Browser, and check it against the login captcha.
Yes. It is built to feel like a normal online shop, which is why it is a common first market. The one habit to learn is checking the address against the captcha every session.
Monero by default for privacy. Bitcoin only when a vendor requires it. The deposit address is fresh per order.
Copy a mirror from this page, then hold it against the address the login captcha prints. Match means genuine, mismatch means close the tab. Never type a fifty-six character onion from memory.
No. A genuine login never asks for the recovery phrase. A page that does is a phishing clone.
Build a fresh Tor circuit and retry, or switch to another mirror here. All resolve to the same market.