bad attitude and poor customer service

we experienced bad service from mango staff, we arrived at counter 18:35 to check in for a 19:15 flight, and we were denied the staff gave us attitude they did not even care of our circumstance nor try to assist us the spirit of ubuntu was not there at all, we were then put on standby and told to come at 4, we slept at the airport and went back at 4 they told us to come back at 5