Clearer opt-in guidance for toll-free numbers

The toll-free number verification form now includes clearer email validation rules requiring your email to match your brand domain or prefix. We’ve also added updated opt-in examples with real screenshots showing exactly what carriers expect to see as proof.
Most importantly, new help text explains that your use case, opt-in method, and sample messages must all describe the same type of communication. These updates help you submit complete information the first time and avoid approval delays.