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Alliant Credit Union P.O. BOX 66945 Chicago, IL 60666-0945
Alliant Credit Union P.O. BOX 2387 Des Plaines, IL 60017-2387
Alliant Credit Union ATTN: Cards Risk Management Team P.O. BOX 10409 Des Moines, IA 50306
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800-328-1935 (Ext. 2570)
Monday - Friday: 8 AM - 5 PM CT
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Alliant Credit Union P.O. BOX 1666 Des Plaines, IL 60017-1666
Alliant Credit Union Att: Plastic Card Operations 11545 W Touhy Ave Chicago, IL 60666
800-VISA-2911 (24/7)
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800-328-1935 Ext.2570
800-328-1935
Monday - Friday: 7 AM - 8 PM CT Saturday: 9 AM - 6 PM CT
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