Worst service I have ever had at a hotel. I stayed...

Worst service I have ever had at a hotel. I stayed for 3 days, and each day at some point during the day, my room key stopped working. It took the managers over an hour to get me a new room key each day, completely wasting an hour out of MY beach time waiting on them. The managers were unsympathetic and ruined my entire vacation with their unwillingness to help and unfriendly attitude.
I have been a Marriott customer for 25 years, but after such a poor experience I will never stay at one of their properties again. Never, EVER, have I experienced such a terrible management staff with an unwillingness to help.