"audiology need to learn how to listen"

Had a hearing test and hearing aids were replaced with new supposedly better aids. Had to return to have them retuned because they were too loud and whistled. After 2 weeks perseverance I returned to ask for them to be retuned because they were still to loud and the constant whistling was driving me mad. I was told I had to get used to them, I was hearing what a normal person heard and I couldn't have them adjusted as I would only be back asking for them to be re adjusted. The person I say spoke to me as if I was a stupid child, they had a script and was delivering it regardless. They might have been hearing but they certainly wasn't listening. As a result I am investigating obtaining aids from Specsavers