Use our convenient email form below to submit your email address and your question/request. A Diamond Representative will respond by the end of the next business day. Please DO NOT include account numbers or sensitive information in this email.
Contact Us
Welcome to the Diamond Contact Center
We look forward to assisting you.
Diamond Credit Union Routing Number: 231385154
Service Call Center
610-326-5490
During Business Hours: Choose from a list of automated options or connect with our Call Center for personal assistance.
Monday – Wednesday: 9:00 a.m. to 5:00 p.m. (Eastern Time)
Thursday & Friday: 9:00 a.m. to 7:00 p.m.
Saturday: 9:00 a.m. to 1:00 p.m.
After Hours Assistance: Diamond offers after-hours support. A live person is available to answer questions and assist members, or in certain cases, a Diamond representative will follow-up the next business day. For assistance, call 800-593-1000, option #3.
Live Chat
For general questions, you can chat online with a Diamond Member Services Representative. When you chat, you will be communicating live with Diamond.
Monday – Wednesday: 9:00 a.m. to 5:00 p.m. (Eastern Time)
Thursday – Friday: 9:00 a.m. to 7:00 p.m.
Saturday: 9:00 a.m. to 1:00 p.m.
Card Emergencies
For assistance with lost or stolen cards, or suspected fraud, visit the Card Emergencies section of our website.
Lending Call Center
610-326-5490, choose option 4 to connect with the Lending Call Center.
Our dedicated loan professionals are ready to assist with your lending needs during business hours.
Monday – Wednesday: 9:00 a.m. to 5:00 p.m. (Eastern Time)
Thursday & Friday: 9:00 a.m. to 6:00 p.m.
Get more information or apply online 24/7.
Branch Locations
Diamond has several locations to serve you via drive-thru, in-person appointments and lobby service.
Postal Mail
All postal mail should be sent to:
Diamond Credit Union
1600 Medical Drive
Pottstown, PA 19464
If a specific person, department, or branch is desired, then please include that information as the first line of the address.
