Full price payment at signing of sales promise contract constitutes advance payment, not deposit.

The court modified the decision to hold that paying the full price upon signing a sales promise contract constitutes an advance payment rather than a deposit. The appellant argued the payment was a sinal (deposit) to secure the contract, while the respondent contended it was merely the initial advance of the total price. The court ruled that since the entire sum was paid at the moment of signing, it legally qualifies as an advance payment under the Civil Code, not a deposit requiring separate return conditions.