
If your travelling with pup then ti's easier to do it yourself. Ring the airport and find out what happens once flight lands, where the dog goes, and where you have to go to complete payment and collect him.
The first time at heathrow I had to go to the cargo office (a drive from arrivals) of the airline I used, to pay, and then pick dog up from Quarantine (7 miles the other side of the airport).
Second time helping a friend last year it was just Quarantine where we were billed for the handling, paperwork checking and Quarantine time.
So the best thing is to find out the procedures at your airport.
Re paperwork it's just the pet passport, teh cargo weigh bill, which you should hang onto yourself and have copies attached to the shipping crate.