Oh Souraya, I can see why you are so upset, poor Cody I can't believe these people, I will never understand why a person wants a dog to tie to a tree like it didin't exist, it's certainly not for companionship, not for love, why?
I learned one thing if the dog is on a very short rope, or no water, or no shelter you can call animal control. The stupidity of some people, let's see is a dog better in a crate for a couple of hours or tied to a tree the rest of it's life. That's awful and cruel.
I know how disappointed you are and there is always the chance they will change their mind again.
Jackie