The worst customer service and airpory

I was asked to stay over an extra night as our flight was competely overbooked. I was told to go to a desk at D1 and get a new boarding pass and they will direct me to the hotel. Four LONG hours later I am still at the airport. Only to find out NOW I have to apply and pay for an E VISA. I was sent from gate to gate to gate. NO ONE helped. It's ****** insane. I am still here. Not a clue when I will get my e visa. If you CANNOT EXPLAIN to people WHAT IS GOING ON WHEN YOU OVERBOOK THE flight then do not ask people to stay over. It's the WORST SERVICE OF AN AIRLINE IN MY LIFE!!!!!