After the delivery, the customer will not give money, and the phone will not answer the message.

If the customer is in arrears and does not answer the phone, he can get back the payment in the following ways: apply to a mediation organization for mediation; If there is an arbitration agreement, apply to the Arbitration Commission for arbitration; Bring a lawsuit to the people's court. Pay attention to collect the evidence of the other party's arrears in payment, such as receipts and sales contracts.