A good rule of thumb is an if its an online agency or if they advertise on TV and sell to the general public then you will not get points or benefits. If you are able to enter your hhonors number at the time of booking you will get points and benefits, if not you wont.

Brands are trying to discourage clients from using online agents as they fleece the hotels with huge commissions. You will always find the cheapest rate, for comparative product and service, on a brand website.