Here's a copy of the response from the robinhood support when my order failed and cost me hundreds of dollars:

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Thank you for reaching out, and I'm very sorry for the delayed response. On Monday we experienced an issue that resulted in some order failures.

I understand that this must have been a frustrating experience for you. We sincerely apologize for any inconvenience this may have caused. We believe that any downtime is unacceptable, and our team is working diligently to make sure it doesn’t happen again.

As a gesture of gratitude for your patience, this month’s Gold subscription is on us.

Please feel free to respond to this email with any questions. We deeply appreciate your patience and we’re happy to help.

Sincerely, MM