Try the following:
1.) Make sure you're checking the correct email address inbox associated with your Beaver Bitcoin account.
2.) Refresh your email and check your spam and promotions folder for a message from "hello@Beaverbitcoin.com".
Occasionally, our carrier service has a small delay in sending the passcode email. If you do not see the email within 3 minutes, you can reach out to our support team.
If this delay in receiving the passcode seems to be a persistent issue, consider changing your email address to a different domain name. Gmail accounts tend to have very good email deliverability.