Sorry I didn't know where to post this just need some advice!!

My husband and I moved out of our rental house last month because our lease was up. Well for some reason our final bill for water didn't get forwarded to our new address which our mail has been a little messed up since we did forward our mail. So the rental company calls us to let us know they got a call from the water company because of the outstanding bill. So as my husband was talking to her, he asked when we will be getting an itemized list/deposit back. And the lady was being a serious B! She asked my husband very very rudely "well did you pay the half of rent yet" and my husband was like yeah... we paid it when it was due. And she immediately "oh well I just haven't checked yet" mind you it's been almost a month!!! Then she says "well we never got your new address to send it to you" and my husband tells her how he had left it with the guy who works there and she tells him well I never got it, so my husband then gives it to her again. THEN she was like "well were going to have to repaint the marker on the walls" and my husband was like what?!! Marker?? We have no kids so how could that happen lol. And she's like yeah where there's a big black square and maker on it. And my husband was like oh you mean where the owner painted a half ass chalk board wall that we never used?? And he goes on to tell her how we never even used that room because it smelt like dog piss and poop so we just always kept the door shut and never utilized it. And she was like well why didn't you report that.. and my husband was like we did.. in the 4 pages my wife wrote on all the damages. At this point she was like oh ill have to find that, then she snaps again well we had to pay an extra trash pick of 89 dollars. And my husband was like why? That wasn't our trash, we cleaned everything out. Anything left over was what the last tenant left that you guys never came to get that you said you would and again we never touched any of it. And she was like well there was a broken patio table out there which yes we did honestly forget about that, so 1 thing of ours. She then tells my husband how she has pictures and he tells her yeah my wife has a picture of all the stuff they left too. Then she was like well ill get all the bills together and send what we figure out to you.

But now I've been thinking on how I feel they are trying to do us dirty. We never damaged the house, didn't paint a thing, nothing. And I feel like the owner of the house is probably telling them that the chalk board wall thing wasn't there before which it was I just never thought to take a picture of it. I'm just at a lost. We've always paid rent on time, we even paid the water bill she called about right away. Never had any issues with the company until now all of a sudden.