Legal Question in Personal Injury in Connecticut

This is not really a tort or personal injury question, but rather one of contract terms and conditions. When you took the deposit, did you advise the buyer that the deposit was non-refundable and provide them with any paperwork that would reflect the same/ Also, have you incurred any expenses or costs as a result of the fact that the buyer backed out, such as additional advertising expenses to re-list the car or incur costs for the purchase of a new vehicle based on the representations of the buyer that your vehicle was in fact sold. This is all information that must be considered before a complete answer can be given. If you have not suffered any damages then the buyer should be given the money back.