I arrived for a two night stay late in the evening...

I arrived for a two night stay late in the evening and was told that no rooms were available despite a reservation. I was given a cab voucher and told to go to another Hyatt hotel. I also was promised that my night at the other Hyatt would be free. The cab did not accept the voucher, my room at the other Hyatt was not ready, and I ultimately was billed for the night.