Make a Discretionary Commission Arrangement Complaint Your information Title First name(s) Surname Previous names (if any) Date of birth Address we currently hold for you Current address Postcode we currently hold for you Postcode Please include postcodes Previous addresses Phone number we currently hold for you Telephone number Email address Please enter the numbers of the Santander Consumer Finance agreements for which you require information. If you don't have this information please supply the registration numbers of the vehicles concerned. Your agreement number(s) Normal monthly instalment Tell us about it Please give a description of your complaint and how it’s affected you