7 Scores range from a low of 300 to a high of 850. Key factors that adversely affected your credit score: The Barclaycard Credit Card is issued by Barclays Bank Delaware, P.O. Box 8801, Wilmington DE 19801. EFTA00811645 Application: 64677782 24-NOV-2017 - Lack of recent installment loan information - Too many ac