- Financial Services
- Alliant Credit Union 1
- Customer Service
Contact Alliant Credit Union Customer Service
Alliant Credit Union Phone Numbers and Emails
Toll-Free Number:
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(800) 328-1935
Customer Service:
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(773) 462-2000International Calls
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(866) 444-8529Lost or Stolen Card
How to Contact Alliant Credit Union Customer Service?
Most Popular Number:
The Alliant Credit Union phone number for customer service inquiries is 1-800-328-1935. The Alliant Credit Union customer service advisors will answer your questions and assist with your issues anytime you need help. You can also dial this number to block lost or stolen Debit Card. The same Alliant Credit Union contact can be used to register your complaints. If you have problems with your Credit Card or if it was lost or stolen, call 1-866-444-8529.
If you are outside the US and need to contact the company Help Center, use the following phone number: 1-773-462-2000. The customer care agents are ready to provide information and help whenever you require it.
The customer care representatives at the company helpline are available 24/7. You can call the Help Center for information or support anytime, day or night, and live agents will be ready to provide instructions to solve the issue. The Alliant Credit Union hours for International Calls are the same. You can reach the assistants 24/7, even from abroad.
You can also use the live chat to receive help and answers to your questions from a live person. Click the Chat Now button in the bottom right corner of the Contact Us page and enter the required information to initiate the conversation. The virtual assistant is available for simple questions 24/7.
The corporate office address is Alliant Credit Union, 11545 W. Touhy Ave., Chicago, IL 60666, United States. Note that it is not open to the public and has no branches or ATMs.
The Alliant Credit Union address for Auto, RV, Personal, and HELOC Consumer Loan Payments is PO Box 2387, Des Plains, IL, 60017-2387. The company address for Credit Card Payments is PO Box 1666, Des Plaines, IL, 60017-1666. For deposits, you can use the following address: Alliant Credit Union, PO Box 2387, Des Plaines, IL, 60017-2387.
You can check the Mortgage Loan Payments address for your area on the Contact Us page, as it varies by state of property.
Contact Information
Alliant Credit Union Website:
Alliant Credit Union Help Center:
Corporate Office Address:
Other Info (opening hours):
Other Location:
1600 Golf Road,
Rolling Meadows,
Illinois 60008
Mailing Address:
P.O. Box 1666,
Des Plaines,
Illinois 60017-1666