Question: What are the renting arrears tax ids related to the customer master index whose detail is not 'Schmidt, Kertzmann and Lubowitz'?
SQL: SELECT T1.council_tax_id FROM Rent_Arrears AS T1 JOIN CMI_Cross_References AS T2 ON T1.cmi_cross_ref_id  =  T2.cmi_cross_ref_id JOIN Customer_Master_Index AS T3 ON T3.master_customer_id  =  T2.master_customer_id WHERE T3.cmi_details != 'Schmidt ,  Kertzmann and Lubowitz'