It is far better to just have one person down the line assessing your audition piece and then giving you the answer as soon as they have listened to it. Most of the auditions I have done it goes to my client, that then sends me an email anywhere between 2 - 30 days later advising I have forwarded this to my client and then dependent on the deadline of the job, this could be another month waiting. It could be two months in total before you even get an OK. By this time you may have forgotten the job you auditioned for especially if you audition for 5-10 different clients a day. Always a good rule of thumb is to make a quick excel spreadsheet with the auditions listed from whichever website in the form so that you can have a quick easy reference.
It is not good practice for a client to come through and for you to say "Which job was that one?" Make sure you know your auditions because it is good for you to be on top of your game as well as good for the client so as to be dealt with in a completely professional way. Just a few simple things can ease your workflow and make it easier to quickly locate the information you need when you need it.
Of course, not all voice over jobs require you to play the waiting game sometimes it is as easy as sending your audition through to the client and they immediately come back to you. This usually occurs when the client has a very specific voice in mind and your voice fits the profile perfectly. In this case you can do the job and usually be paid a lot quicker than with more generalized voice jobs where the client is not so sure what type of voice they want and the client is using different voices to try out with a client.
One thing is for sure in the voice over world you need to have a lot of patience. Sometimes an immense amount of patience is required. Some clients just advertise jobs to scout talent and to add them to their books for future reference and they don't tell you this. You wait for that particular job you applied for but later find out they are either putting the project on hold or they were speculating about the voice project in the first instance and it will never come to pass.
Keep auditioning and don't be impatient because some jobs can come back to you like a boomerang up to a year, maybe even two years later or more. They shelve you for a particular project but then your name or website address comes to their mind at a later stage. Those types of jobs are the best because they are searching for you, so the effort that is needed to get the job and the audition that goes with it may not be needed.
Good luck to all with your auditioning! Keep those vocal chords moist!