My Costco ReSound hearing aids are too loud

The lady at Costco has the volume on my aids adjusted so high that I have them at the lowest level the app provides and they are still way to loud
For a lot of reasons getting to my local Costco is difficult.

Your audi should have activated the ReSound “Acceptance Manager”, which gradually increases amplification up to what the audiogram indicates. This is done over up to several months to avoid the chok you’re experiencing. Illustrated here in a YouTube.