diff --git a/584-find-customer-referee/584-find-customer-referee.sql b/584-find-customer-referee/584-find-customer-referee.sql
new file mode 100644
index 0000000..11764e6
--- /dev/null
+++ b/584-find-customer-referee/584-find-customer-referee.sql
@@ -0,0 +1,4 @@
+# Write your MySQL query statement below
+SELECT name
+FROM Customer
+WHERE referee_id IS NULL OR referee_id != 2;
\ No newline at end of file