Heathrow Rewards

1. The minimum amount of Heathrow Rewards Points for each conversion is 250.
2. The maximum conversion is 10,000 Heathrow Rewards Points per day.
3. Conversion is done in blocks of 250 Heathrow Rewards Points, which is equivalent to 250 Asia Miles. 
4. Asia Miles will be credited to the member's Cathay membership account 6 to 8 weeks after each successful transaction. 
5. All points conversions are non-refundable, non-transferable and non-reversible.
6. In case of any dispute, the decision of Cathay Pacific Airways Limited, Asia Miles Limited and Heathrow Airport Limited is final.
7. Other Cathay terms and conditions and Heathrow Rewards terms and conditions apply.
8. Heathrow Rewards full terms and conditions apply.

Website: https://www.heathrow.com/contact-us