hi, recently i just finish 1 year contract rent in a condo, then i need to claim back my deposit, i have all the key ,card and agreement and form.

The owner is very smart, in the agreement / One of the tenancy criteria is stated that :
You need to stay here within 1/1/2015 to 1/1/2016, less than that deposit will be forfeited, no negotiable.
so the owner use this reason to refuse the deposit to me. She claimed that I never fully stay 12 months and half way move out, which is an excuse, but i really stay there for 12 month, and pay rent every month, however most of the rental receipt i throw away and do not keep well, mean no proof of rental receipt, but have other proof.(deposit, contract and agreement, and key still with me )

Add: the owner also change the lock of the front door. and my card key become unaccessible .

so what should i do? complain to police and management ??