Thank you for reaching out and bringing this to our attention.
If you're unable to receive the SMS verification code to authenticate your account and login, then you can try using one of the recovery codes to login and set up two-step authentication again. However, if you didn't keep a copy of the recovery codes or you don't have them anymore, then it looks like we'll need to access your account in order to resolve the issue. While we're unable to provide account-specific support via the Shopify Community, we'd be happy to continue assisting you through live chats. Please visit the Shopify Help Center and login to your account to create a support request.
That being said, I noticed that you're a new member of our Shopify Community. Once you're able to resolve the issue with SMS verification with our Support team, I'd love to hear more about your business and share some resources to help you get started.
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