Ok here is how it all works, when the car is granted the approval, dotors then give all transport departments the details so that when you go to register your car it is already in the system, ( I once went to rego a trailer very soon after it arrived and dotars had no done it so had to wait a day for it to be done) You can put as many cars bikes or whatever on just one $50 approval so the importer often gets $50 off everyone, but as for not handing over a copy is beyond me as you only need a copy and it does not matter whos name is on it, have sold many cars with my name on the import and no one has had any problem getting car regoed, You can only assume they have lost it and can't be bothered chasing a copy, remember you only need a copy..fax or emailed even.... so whatever the reason for not giving a copy sounds like you are being handed a lot of BS for no particular reason.......good luck