how much is he?
It could be that he's been there for quite a long time... At least he is not forced to sit inside the cage that is too small.
I rescued a cockatiel (bought at a tiny pet store for the price they were asking) that was there for 3 years, in very poor conditions (when I visited relatives in Russia). I found a local breeder who agreed to take him in, for free of course, and hopefully that breeder took some care of the bird and found him a good home.
But do you know what the sales person did to me before I bought him? I was at the store and got shocked about this bird, I asked them to sell him to me for reduced price because it was obvious that he wasn't selling and the imprisonment was taking too long. She said the owner was on vacation and I never heard back from them. The price was equivalent to about 140 USD - same as Petco sells them in US. Obviously it was too expensive for provincial town on the White sea, people mostly buy budgies there. When I finally came to buy him, I saw that the price tag was not there... And the salespersons tells me that she checked inventory and actually the price is about 30-40 bucks more (that she hoped to put in her pocket). I was totally pissed and talked to her with anger. I even said I was ready to call police (which wouldn't help at all

. I think I didn't buy him that day because of that price mismatch. I promised to be back, and she'd better have the correct price tag in place. I finally bought him (for original price) and she was so apologetic LOL she even generously allowed me to keep all his belongings - tiny cage with worn out feeders.
The breeder gave him a different cage with different feeders of course... and the cockatiel refused to eat anything for 3 days! By accident, breeder's daughter offered him food in his old awful feeder, and he ate with hunger! I don't know why the breeder didn't know that change of environment and feeders can affect bird this much. I hope he is fine by now.