IHG Rewards has a promotion offering Double Miles for members that are registered as Miles Collectors in the program. The promotion is offered as an alternative to the Accelerate 2016 promotion that is targetted towards point collectors.
The promotion is running through to the end of April, 2016 – in tandem with the Accelerate promotion. Under the terms of the promotion, you are able to earn Double Miles with your selected airline partner from the second stay undertaken in the promotion period. As with many IHG Rewards promotions of this type, you do not get Double Miles on your first stay. There is also a maximum of 10,000 bonus miles that will be awarded through this promotion.
The full list of participating airlines is show in the following graphic:
The standard earrn rates for airline partners may be found on this page. Do note that not all airlines are participating in thsi promotion.
Further information and registration for the promotion may be found at this link.