All sales are supposed to be as is and as seen when you first walked through the property and made your offer, unless alerting you noted items are going to be removed.
Being you had this information written into the contract, you have an issue.
Was there a final walk thru of the property the day you closed Title? Were the original appliances there when you did the walk thru? Did you have an Attorney or Title company represent you?
You will need to talk to a local Real Estate Attorney in regards to limitaitons and what your direction should be. They could have held monies in escrow if you caught it the day of closing. They could have credited you the amounts for appliances taken. There could have been steps taken prior to your closing to stop the actions and get monetary credit.
If it were me who wrote the contract as a Realtor, I would lose my license for making intentional false statements. Well, so did the seller in this matter if it was indeed them who took the items.
Call an Attorney. It doesn’t sound legal.