Legal analysis: If the family member who is being served is retained without signing, the deliverer can invite representatives from relevant grassroots organizations or units to attend, explain the situation, and record the reason and date of rejection on the delivery receipt. The person who delivers the document or the witness shall sign or seal it, and leave the litigation document at the residence of the person to be served.

Legal basis: "Civil Procedure Law of the People's Republic of China" Article 86 If the person to be served or his adult family members living with him refuses to receive the litigation documents, the person who serves the person may invite relevant A representative of the grassroots organization or unit shall be present, explain the situation, record the reason and date of rejection on the delivery receipt, have it signed or stamped by the deliverer and witness, and leave the litigation document at the residence of the recipient; You can also leave the litigation document at the address of the person to be served, and record the service process by taking photos, videos, etc., which will be regarded as service.