The promotion is tiered at 145%, 155%, and 165% for purchases of 1,000–20,000; 21,000–50,000; and 51,000–200,000 miles, respectively. Purchases are capped at 200,000 miles per transaction before the bonus with a 500,000‑mile annual receipt limit that includes bonus miles, according to program terms. Offers are targeted, so members may see different bonus levels or no offer after logging in. LifeMiles can be redeemed across Star Alliance partners without fuel surcharges, but award access can differ from other programs and recent pricing changes make pre‑purchase award checks essential. Transactions are processed by LifeMiles as airfare, post to accounts immediately, and are non‑refundable; buying miles extends the 12‑month expiration window and counts toward elite progress, though Avianca flight activity is required for status.