Brand BN7c21e0 SUSPENDED: carrier reported unsolicited traffic. Messages are being blocked now.
How to fix this
How to handle a suspended brand
Suspension follows carrier complaints about unsolicited messages, and sending stops immediately. Re-registering will not work — carriers track the brand. Fix the underlying consent problem first: confirm you hold opt-in records for every recipient and that the list has no purchased or scraped numbers. Then appeal through Twilio support with that evidence attached.
Campaign on "Appointment reminders" FAILED: opt-in flow not evidenced on the website referenced during registration
How to fix this
How to fix a rejected campaign
Campaign rejections are nearly always about opt-in evidence. The website you referenced during registration has to publicly show how people consent to messages, what kind of messages they will receive, and a message-frequency plus data-rate disclosure. Reviewers check that page. Fix the page first, confirm it's live, then resubmit — resubmitting against an unchanged page just fails again.