Members of Carlson Rezidor's Club Carlson programme can earn 10,000 bonus gold points per night when staying at participating Radisson and Radisson Blu hotels.
To qualify, members must book the "Mega Points" rate and quote promotion code MEGAPTS at the time of booking.
The offer is valid for stays at more than 100 properties in North America and South America until December 31. To view a list of participating hotels, click here.
Carlson Rezidor recently announced it will open a Radisson Red hotel in Glasgow in 2017 (see news, September 7).