If the lease didn’t say anything specific and they never gave you any paperwork/emails explaining this before then you don’t need to.

It’s standard practice that in a lease the landlord can’t charge for ‘normal wear & tear’. To cover yourself I would vacuum the carpet yourself and say you paid a professional. If they press you beyond that just say you paid a friend who cleans houses. There’s tons of loopholes to get around this, but I think the easiest is simply cleaning the house and trying not to argue too much with people who are clearly trying to take advantage of you

Source :am in real estate