There is no unlimited data eSIM plan for Mayotte from GulfData. The provider only offers fixed data plans with set allowances: for example, a 20GB plan valid for 30 days costs $19.00 USD, a 10GB plan for 30 days costs $9.00 USD, and smaller 5GB and 3GB options are also available for 30 or 15 days. Choosing a fixed data plan can be more cost‑effective for most travelers unless an extremely heavy data user needs unrestricted data.