src/EB/SDK/RecipientSubscribe/Recipient.php
public function setComplaintDate(\DateTime $complaintDate)
    {
        $this->complaintDate = $complaintDate;
        $this->complaint     = true;

        return $this;
    }
public function setComplaintDate(\DateTime $complaintDate)
    {
        $this->complaintDate = $complaintDate;
        $this->complaint     = true;

        return $this;
    }
@param \DateTime $complaintDate

@return Recipient