It's happened to me numerous times (just last month at the FF outside ATL, wake up call for 6a, was packing to leave at 7:15a & phone rings...ha...ha). I have a horrible time getting up, so I used to depend on the wake up calls, until 2 yrs ago, I almost missed a plane. I just set my phone for 2 or 3 alarms. I just don't count on anyone anymore. I did complain, other than an apology, no compensation.