Brentmoor Apt. Penn Center

I wanted to rent an Aptat the Brentmoor & was told the rent would be $per month, yet when I looked on line it showed the rent as $per monthWhen I called there & spoke with Polly, their manager, she said " Oh we haven't changed our website." Is this legal? I really wanted to move theirThey dhow apt# *** as being available in July at a much lower rent then I was quoted over the phoneShe also said that the rent was higher as the apthad been updatedNOT TRUEI have friends that live in the building & they told me that wasn't trueDon't they have to rent out an aptfor the price advertised?