So an update to my situation I contacted RamCare and stuck to my guns they've agreed to reimburse me if I want to order the divider but not the posts, so got it on order today and ordered the posts separate.
Nice going on sticking to your guns. I went back to the dealership when I realized I didn't get the divider. Luckily they pulled one off a Limited for my lil Bighorn. Not much need for an extender, but I guess it would be nice to have.