These arguments of fraud are cute. These folks must work for the hotels.

Fraud must be proved by showing "injury to the alleged victim as a result." Simply put, the "fraud" must cause the victim injury that leaves him or her in a worse position than she or he was in before the fraud.

This would be impossible for a hotel to prove as you are using a discounted rate that they appproved and is used thousands of times per year. Let's say hypothetically that they could prove a loss, you would only be held liable for the actual loss caused. Even then, there's no way they would ever go after you because the legal feels would far out weigh what they could recover.

What it comes down to, there's no risk of repercussions. The worst that could happen is they deny you the corporate rate and you need to be prepared to pay the rack rate.