I'm not sure what you are asking. You said you saw Destination Escapes (DE) online, so you have seen the listings on the website. (Many have posted screenshots of how they look.) But, I think you are confusing two different things. Forget about the resorts the rep looked up with discounts.
As I and others noted, DE are extremely limited off season deals for specific listed properties and dates for 3, 4, and 7 night stays in various room sizes (likely the lowest view category if they exist at a resort.) They have a fixed point cost (see examples in earlier comments) based on length of stay and room size, across all available resorts.
However, you cannot see "live" current availability. The DE page only shows availability as of the time the page is updated with new listings, which is periodically (see my comment #37.) After that you have to call and see if it is still available at the DE rate. (The resort could have availability during the same time at the regular point values.)
There are no percentage discounts, and this has nothing to do with searching regular inventory with or without any applicable tier savings. Either the rep or you (or both) were confused about what they were telling you.