Locked in the bathroom

Went to the females bathroom used the middle stall because there are only 3 stalls. Closed the latch behind me and then realised there was no handle to open the door. I was stuck in the bathroom for 15 minutes screaming for help because the door was stuck. The front desk is right outside the bathroom. Another customer had to kick the door from the outside to open it and I was finally able to get out. Reported it to the staff and they did not seem to care at all.