How long should I wait before requesting another verification code?
https://quickbookhelpdesk.com/blog/quickbooks-verification-code-not-received/
Wait a few minutes before requesting another code, as temporary delivery delays can occur. Not receiving a QuickBooks verification code can interrupt your work, but the issue is usually easy to resolve. Incorrect contact information, internet connectivity problems, spam filtering, outdated software, or temporary delivery delays are among the most common causes