I haven't receive my ticket and I am leaving Monday morning!

Here is the story: I purchase the ticket several months ago. A week before my departure date, cheapOair send me an email asking me to accept a flight change. I accept the new options/schedule the same date. The next day I called to their schedule change department and ask for my ticket (because I can't get the boarding pass without a ticket!), I was told to wait for 24 hours and they will call me back tomorrow to give me an update, so I waited for 24 hours and nobody called me back. I called CheapOair again and they said they've send an email to Air China and ask me to wait for another 24 hours and they will call me the next day for an update. Again they didn't call me so I called them back and was told nothing they can do, I need to wait for another 24 hours...So I have waited for 3 days at this point, and tomorrow is Friday and I am leaving Monday morning at 8am. If they didn't give me ticket again by tomorrow, there is no way I can get my ticket before my departure because Air China doesn't work over the weekend! I highly doubt I will even get my ticket before my departure. I bought two tickets from them, my 3 year old child ticket and myself, and they keep telling me there is nothing they can do. They can just wait to hear back from Air China, so I don't even know what to do at this point!

I will never ever use CheapOair again. They took my money several months ago and all I requested is to have my ticket!

Any suggestion? Any help would be appreciated!