Cant Login to Account, After payment

Do you have 2FA enabled? If you don't have 2FA enabled your account may have been hacked. If your account was hacked it generally can't be recovered.

Yep, you got phished. Here's how you can figure out what happened. No, you cannot get your coins back. If your password no longer works most likely you are locked out of your account. Time to make a new one BUT this time be smart about it.

You need to learn basic PGP and enable 2FA on your account. 2FA on Alphabay uses your PGP public key to create an encrypted message every time you log into AB. This message provides a code that you enter into AB to finish loggin in. No, it does not say, "Drink more Ovaltine."

Only YOU can decrypt it. Which means that even if you give your username, password and PIN (like you've done in the past) they won't be able to login because they can't get the secret code.

Here's the tutorial that I used to learn PGP. The vast majority of these steps are only done once during setup.