airdatalink does not provide a plan with an unlimited data cap for Seychelles. Their offerings are fixed‑data bundles, each with a hard limit that must be used within the specified validity period. For example, the Africa 21 eSIM — 50 GB · 15 days plan gives 50 GB of data for 15 days, while the Africa 21 eSIM — 30 GB · 30 days plan offers 30 GB for 30 days. These fixed plans can be more cost‑effective for most travelers unless they anticipate consuming data beyond the bundled amount, in which case a pay‑as‑you‑go approach would be necessary, but no such unlimited option is listed for Seychelles.