How long do hearing waivers usually take?

I failed my hearing test at MEPS largely due to prior service in artillery and as a fore protection augmentee on a flight line. I failed in one ear by 5 points each time. My recruiter, the doctor at MEPS and the liaison believe it will be approved. The liaison gave me a timeline of 1-2 weeks but I am curious if that is a standard given timeline or if that is a realistic timeline.

Thanks!