Active discount codes from eSIM providers covering British Indian Ocean Territory, with pricing context for each.

Promo Code
Coverage of the British Indian Ocean Territory comes from Orange Travel's World plans, which the code ESIMDBWRLD discounts by 25%. Enter it at checkout on the Orange Travel site before payment. Only the World range qualifies, and each customer gets one redemption.
Applied there, the code saves $7.50–$9.

Promo Code
Esimatic sells eSIMs reaching the British Indian Ocean Territory, and ESIMDB10 lowers the price by 10%. Type it in the promo field on the Esimatic checkout page before payment. It is a single-use code per account and cannot be combined with other offers.
Depending on the plan, that means roughly $5.60–$26 less.

Promo Code
Tripuck eSIM takes 5% off its plans covering the British Indian Ocean Territory when you enter ESIMDB at checkout, on the website or in the app, before paying. The code isn't limited to a single use, so it works for later orders as well.
Depending on the plan you pick, that adds up to a saving of $4.90–$12.