WapTalk ("we", "our", "us") operates a multi-tenant platform that lets businesses manage and automate customer conversations through the WhatsApp Business API.
Two roles, and the difference matters. For our own customers' account data we are a data controller. For the end-customer conversations that flow through a business's own WhatsApp number we are a data processor acting on that business's instructions - they decide what is collected and why, and they are the party to contact about your conversation with them.