There are no specific pledges on fare levels within it. (politics.co.uk)
Another trick to understanding Enrich's awards is knowing that it has several fare levels for award flights on Malaysia Airlines. (rewardexpert.com)
Also, the value is fairly consistent across fare levels — Blue, Blue Plus, Blue Flex and Mint — so you can get good value out of your points if you fly premium class. (creditcards.com)