First, check your SPAM/Junk folder. If it's not there, use the "resend" button on the payment confirmation page or send a message below; the link will be sent manually.
No. Every plan is one payment and is never charged again. Nothing renews automatically.
A one-click login link will be sent to your Email from the "Forgot Password" section on the Log in page.
Use the "There's an error in this question" button below the question; it will go directly into the quality queue for the team to review.