"Go up the road"
I made on line reservations on their website. When i arrived after dark, the man at the registration window said i was in the wrong place when i showed him the confirmation email. He said there was no way to make on line reservations. He said I must be looking for the place up the road. I went up the road, that place said the prior place was where i was supposed to be but if they wouldn't help me to cone back. I went back to Hot Springs Resort, they said, nope, not us, can't help ya. I traveled down the road to a campground called DeLights. These folks were super helpful, and friendly. They found me a spot on their campground and it was a nice quiet campground. The hot springs pool was fabulous! The bathrooms and showers very clean. I ended up staying here two nights as i toured Death Valley. The following morning after i was able to use Delights wifi, i found the website for Hot Springs Resort and took pictures of my campsite i had reserved and other pictures of their website. When i went back there they admitted it was their website. I would not stay at Hot Springs Resort. If it's dark, late, or they are busy, you are probably out of luck even with a reservation.