根据以下内容，回答222-223题。 Telephone Billing Statement -- City Phone Cellular City Phone Cellular Department of Billing Services 51 Dublin St., Suite 301 Springfield, WI Invoice Date: 08-15-2006 Payment Due Date: 09-14-2006 Customer Information Name: Desire Eberhardt Account Number: 10003483-FFT Account Information Current Charges: $61.59 Outstanding Balance: $35.08 Total Amount Owed: $96.67 Pay your bill online at www.cpcellular.com and receive a discount of 3% before taxes are added. If you have questions about this or other City Phone Cellular policies, please contact our customer service department at 1-888-349-5959. Billing SummaryAmount Owed Current Charges: City Phone Premium Cellular Package$49.95 State Taxes$5.65 Service Fee $5.99 Total Current Charges $61.59 Previous Charges: Balance as of Last Month $55.08 Payment Received Last Month $20.00 Outstanding Balance $35.08 Total Amount Owed $96.67 How can City Phone Cellular customers receive a discount?
A.By applying for an account online B.By paying their balance early C.By calling the customer service department D.By paying over the Interact