Utec not sending guests an email or text

Hello, I add a guest user to the lock and check the ‘email’ and ‘text’ boxes but they are not receiving any notice of their code access. Suggestions?

@Alex6 We are so sorry for this inconvenience caused for you. Did you operate this via the U home App or Ultraloq Air? Please click here to submit a ticket, so that we can help you troubleshoot.