After reading RLEWIS' recent posting I had a paranoia attack and called the hotels where I stayed. I signed up for the Hilton program in Caracas and the Marriott in Miami.On phoning them today neither had any record of my request for credit to my Latin Pass account, but entered the info into their computors so, hopefully it will post sometime.
So far I've not managed to talk to Radisson directly, only to Gold Points Rewards who said that one must be a member of this program to get awards and that they will try to credit it retroactively.
At each hotel I presented my Latin Pass card and told the desk that I wanted credit to LP.
I know it's a bit late in the program, but I suggest signing up for these hoel awards programs before leaving.

There is a bus from the airport in Caracas which drops off at the Hilton. It costs about $4.50 and gives a feeling of security in the Caracas traffic