If you need a hotel room over the Christmas period, Hotels.com is offering a 12% discount if you book via your mobile device.
Welcome Rewards credit will be given as usual. (EDIT: Despite what I was told by hotels.com, this may not be the case as per the conditions that come up when you use the code. See the comments below for details.)
You don’t need to book via the Hotels.com app. Simply visit their website via a mobile phone via this link and the discount should be authorised. You need to use Hotels.com discount code MOBX at the payment page.
I do not have the full details of this offer to hand at the time of writing as the offer is only due to go live today. Hotels.com discount codes often do not work if you are booking a hotel which is part of a major chain such as Holiday Inn so bear that in mind if it does not appear to work.
You need to book your room by 21st December for stays up to 31st December.