bad service

we booked flight from JHB to CP on the 4th of march 2016 we were 9 of us then we booked from CP to JHB but the seats we only 5 available on the 6th of march the other 4 were booked on the other airline,the bad experience with mango was when we come back unfortunately we were ****** by the taxi we hired to the airport ,we asked 2 of people we were leaving with to go check in while were we busy with the police,after finishing with the cased we rushed back to the queue only to find out the already gave away our seats we tried to explain to the teller our situation she was very rude didn't want to listen,she said we are 2 min late,she referred us to the customer service we spoke to the manager and tried to show them the case number of our problem but they didn't care,when we ask how come our seats we taken while we were in the queue they say we were late people who were on standby they already on the planethey can take only 2 people from us,we had no money as were ****** but we were told to pop up,the police had to do collection to us in order to go home.mango only care about money not the safety of passengers it was first time using this airline and i wouldn't advice anyone to try it