Chickasaw Nation Industries interview questions

Gave me an assignment that was for a live bid (a big no no). I went through it and built a few documents. Their response was positive at first but they sent me a regret notice a day later. They already had lined up someone else. Why ask for a detailed task when you have lined someone else? This is highly unprofessional and I a suspect they reuse such content for their benefit. Stay away from this company!!! They waste your time!!