Hi Rachelmathis1 and Welcome to Binkybunny.
For the really bald spots, you can (scroll down on the bunnyproofing link they posted above) cut small squares of carpet out of an inconspicious area like a closet and then cut the bald spot out, glue the square you took out of the carpet down.
For your damage deposit, my bunny chewed an Epic bald spot in my apartment but they’d just replaced the carpet when I moved in and were unlikely to replace it again. When it came time to get my deposit back, I told them they could certainly deduct me for the damage, but I’d need a receipt that the carpet was replaced in that suite (as they have to by law)….I got my full deposit back
Another suggestion, only if you have the cash and time-ask for permission to remove the carpet and lay down lino, it takes an afternoon for one room and you could probably lino it for about a hundred bux…That could save your damage deposit….
Carpet chewing-you can block the area off (Gate the area, or put something over trouble spots)
Behaviorally address it-squirt them with water and yell no, and/or clap your hands if they chew-also give them more toys and chew things re; phonebooks, toilet paper rolls, wood chews, shredded paper, cardboard boxes
Make the area un-tasty spray with vinegar or perfume.
Let us know how it goes!!