Shocking assistance by Mango

Ive purchased two airline tickets online for two guests through Mango Airlines. They have not sent me any documentation confirming flights ie e-ticket. I also require confirmation of the Credit Card being available at check-in as payment was processed using a company credit card, which unfortunately we are unable to pass on to the guests flying. There call centre has not picked up my call for the last 3 hours, i have emailed several email addresses and finally contact facebook, where they have responded saying i could expect a response in 24hours. How ironic when the flight departs in 14 hours. Ive been told that the turn around time for the call centre calling me is faster than me calling the call centre. How does this assist me? Who do i contact? What am i meant to tell my guests? Does my guests arrive at the airport at 5am to find out they require a company credit card in order to board? They have no e-tickets and we unable to check in online as the ticket was booked less than 24hours. I can promise you this Mango Airlines will not receive ANY of our business going forward. I book flights on a weekly basis and will never recommend Mango to anyone especially if they care about customer service.