anyone here with a lil pull at sewell or grapevine hummer?

[hummer74]

im going to colorado next week and have some warranty items that need fixing before i go. my truck is still under warranty, and i bought it private party from a guy who bought the truck from grapevine hummer. thing is, i need a loaner while its getting fixed. sewell said since "I" didn't buy it from them, they won't give me a loaner. anyone at either of these dealerships that would be able to get me one?????? PLEASE????