Back when beardies were still unusual in the US, I was shopping at a herp place when someone brought in a partly grown beardie in a similar horrible condition. Their complaint was that "it cost them a lot of money but now just laid around and was boring". The shop owner was furious, lectured them, and when that didn't seem to make a dent he just about threw them out the door physically. We gave her Pedialyte and a bit of fruit baby food, a soak to get the old skin off, and I ended up taking her home. For 2 weeks she lay in a laundry basket under a new ReptiSun, hand fed by syringe, hardly able to move. Her gut was full of some sort of sand and she couldn't chew at all. Still, she kept going and ended up a pretty normal if small adult. A friend adopted her and designed her a custom open desert themed pen built on a twin bed frame. A totally spoiled and opinionated little lady for years after.