And yet the question the two posters had are fully answered right there on their booking pages. No need to contact anyone.
While complicated questions are better answered by a good TA or the place in question, and I'm not saying that you're wrong at all, in this particular case, that's just not the situation.
I've been saying this since doing CS for an online company in the late 90s...scrolling down the page and reading it all and clicking on links is today's version of the "fine print". Fine print has ALWAYS meant "READ ME NOW" because if you see that small print you know it contains important information, and scrolling/clicking/reading is the same.
I hope that some day I'm not the only one giving the actual info to people with DME questions after booking through hotels.com and the others. It's such a bummer to have such inaccurate info given to posters in the meantime. I really hope the posters with those questions see the real answer here. Because the real answer is SO easy (and so easy to google really quickly to get, even when you're not familiar with the sites), when your blood pressure isn't soaring because of misinformation from CS reps who are unfamiliar with the actual process.