Originally Posted by BKKLEE

more then likely the tours booked were not hotel owned tours but booked by a 3rd party so points are not accrued so:

Charges that do not qualify for Points include taxes applied to the room rate, purchase of Marriott gift certificates or gift cards, purchase of The Ritz-Carlton gift certificates or gift cards, charges for third party-provided goods and services at participating Marriott brand hotels or Ritz-Carlton hotels, and catering or banquet functions charged to the guest room account

http://www.marriott.com/rewards/terms/earning.mi