If you are not receiving two-factor authentication (2FA) codes, please check to make sure you do not have Talkspace's number blocked. (The code would be sent from 21224.)
Please also check your phone's SMS spam/junk to confirm that the message did not end up there. Check out the following article to find instructions for how to do so on your specific device: How to recover spam messages on your phone
If you've tried these suggestions and you are still not receiving your 2FA codes, please reach out to Provider Support to resolve the issue.