Our support team is happy to send the Textla W9 form at your request. Feel free to email support@textla.com with the title: Requesting Textla's W9, and we'd be happy to get that document over to you.
If you have requests for any other tax documents, please email us at support@textla.com and specify which tax documentation you need us to provide.
For info on Twilio's tax documents, please refer to this article: https://support.twilio.com/hc/en-us/articles/360039672974-Where-can-I-find-Twilio-s-W9-and-other-tax-statements-