Wells Fargo Customer Service Phone Numbers and Addresses. If you have any other problems using the Wells Fargo online banking service, or mobile app, you may need to call the customer service team. Wells Fargo General Customer Service Phone Number. The main Wells Fargo phone number for general questions is: 1-800-869-3557. Wells Fargo Online Banking Phone Number. The Wells Fargo phone number for specific online banking issues is: 1-800-956-4442. Wells Fargo Lost Cards Phone Number. Customers who have lost their credit card, or think it has been stolen should call: 1-800-642-4720. Wells Fargo Credit Cards Phone Number. Wells Cargo Credit Card customers can can call customer service at 1-800-642-4720. Wells Fargo Personal Loans Phone Number. For personal loans enquiries at Wells Fargo, call 1-888-667-5250 Wells Fargo Auto Loans Phone Number. For enquiries about Auto Loans, can: 1-877-246-1015 Wells Fargo Insurance Phone Number. If you want a quote for home, personal or ca insurance, call an agent on: 1-877-246-1015. Open an Account. Meanwhile, if you would like to open up a bank account, the number to call is: 1-866-245-3452. Wells Fargo Mail Address. Finally, if you would like to write to Wells Fargo Headquarters with a customer service issue, complaint, or any other query, the address to write to is: Wells Fargo Corporate Office Wells Fargo Corporate Offices 420 Montgomery Street San Francisco, CA 94104. Wells Fargo Online Customer Service Wells Fargo Customer Service P.O. Box 560948 Charlotte, NC 28256 Wells Fargo Auto Finance Wells Fargo Auto Finance P.O. Box 29704 Phoenix, AZ 85038-9704 Wells Fargo Home Mortgages Wells Fargo Home Mortgage P.O. Box 10335 Des Moines, IA 50306-0335 Wells Fargo Checking and Savings Accounts Wells Fargo Bank P. O. Box 6995 Portland, OR 97228-6995 Wells Fargo Consumer Credit Card Services Wells Fargo Card Services P.O. Box 51193 Los Angeles, CA 90051-5493 Wells Fargo Home Equity Wells Fargo Home Equity P.O. Box 10335 Des Moines, IA 50306-0335 Wells Fargo Student Loans Wells Fargo Education Financial Services P.O. Box 5185 Sioux Falls, SD 57117-5185 Wells Fargo Social Media Customer Service. Alternatively, customers often find it faster to deal with small issues through Wells Fargo's Social Care outlets on Twitter or Facebook. Social Care Support is avaiable 7 days a week, but tremember never to reveal your contact and account details on social media. Please share your expreciences with Wells Fargo's customer service in the comment section below.