Are you a UK American Express Platinum cardholder? If so, there is a 50% bonus when transferring your Membership Reward Points to Hilton Honors from 11th September to 31st October 2019.
You need to transfer a minimum of 1000 Membership Rewards points from your American Express account and have a valid Hilton Honors number to make the transfer. American Express have also said that whilst your standard points will arrive within 5 working days, the bonus points can take up-to 2 months to appear.
You normally receive 2 Hilton Honors points for 1 Membership Reward Point, but with this bonus you will receive 3 Hilton Points per 1 Membership Reward.
The offer will be available in your American Express online portal, or redemption can also be done with one of the helpful Amex team over the phone.