--- /dev/null
+SELECT DISTINCT custnum, agent_custid, first, last, company
+ FROM cust_pkg LEFT JOIN cust_main USING ( custnum )
+ WHERE cancel IS NULL AND 0 < (
+ SELECT COUNT(*) FROM cust_pkg AS others
+ WHERE cust_pkg.custnum = others.custnum
+ AND cust_pkg.pkgnum != others.pkgnum
+ AND cust_pkg.bill != others.bill
+ AND others.cancel IS NULL
+ );