EPSSCO Marketing review: We signed the contract, but the owner still hasn't paid us

Don’t do business with EPSSCO Marketing. We signed the deal, where the owner said that he would purchase goods from us for $5, 000 and we would need to ship it. He bought goods and said that he would pay, when we would tell him the approximate sum for the freight. We did tell him and waited for money, but this man didn’t want to reply. He owes us $8, 000 and no idea why he decided to sign the contract with us.