I'm sorry to hear that you're having that issue with your complex. That seems kind of dumb and sounds like whoever you talked to just may not like reptiles and has some aversion to them. So it may be policy, or they just say no. We've been in many places and some allow them and others don't, but it's all personal and I've only ever seen it ONCE in a lease where snakes over 4 feet weren't allowed. And some places don't allow rodents since they're "vermin" ug. There's just still so much ignorance in this world.
When we get places we only ever disclose our mammalian animals since that's what most people care about. We have tarantulas, so I never disclose that since most people freak out and won't rent to us because they have arachnophobia.
I'd suggest in the future not sharing just because it's not that you're hiding anything, but I find and have always found that an animal contained in an enclosure doesn't really count towards a lease, nor should it matter to the landlord/complex. I mean I wouldn't get a nile crocodile in an apartment or anything, since nothing can contain that
Sometimes you get lucky and find people who don't care. We were worried when we rescued our chameleon and gecko but the landlord came over and liked him, told us about his old gecko and lizard breeding days. But that was just luck on our part. We've had a landlord try to evict us before over our inverts.
If you were to get another chameleon it's not a big deal, but since they're aware of it now, it may become an issue. So, I'm sorry you have to deal with that annoyance.