Here is an offer we have seen before from Marriott, its the airline mileage bonus for stays at their locations in Europe. Depending on the brand you stay at you'll earn an additional bonus of 500 to 1,000 miles.
Earn up to 1,000 Bonus Airline Miles for stays at Marriott Hotels in Europe. Be sure to set your airline earning preference in your Marriott Rewards account prior to completing your stay(s). Full details & online booking. Until Mar 26, 17
- 500 bonus miles per stay at: AC Hotels, Courtyard, Residence Inn and MOXY hotels
- 1,000 bonus miles per stay at: JW Marriott, Autograph Collection, Renaissance Hotels, Marriott Hotels and Marriott Executive Apartments.