How do i get the security deposit if the landlord ignores my phone calls?

i moved out of my duplex i was renting 21 days ago. ive called the landlord several times to do a walk through. i left the lease in a drawer in tge kitchen for the walk thru so i dont have it in my posession. i left my washer and dryer there for them. i bought new stuff to replace theyre junk, i painted one of the rooms. they are ignoring my calls and any other contact. on the lease it states after 21 days without any contact or a list of things that need my security deposit to fix i get my full security deposit back. now what do i do? does this make sense? how do i get my full security deposit it im being ignored?