merdata does not offer a Réunion eSIM plan that includes a phone number or SMS capability. The provider’s Réunion eSIMs are data‑only plans, so users will not receive an inbound or outbound calling number or the ability to send or receive standard text messages.
Travelers who need voice or text communication can use VoIP applications such as WhatsApp, Telegram, or iMessage over the data connection. However, some destinations may block or restrict access to specific services, so it is advisable to verify that the apps you rely on are available in Réunion before completing a purchase.