How do i make a payment to granger credit union? Have your account number and invoice number handy. Use our automated phone payment system by calling 1-888-947-2643 and following the prompts. You’ll need your account number and invoice number. Mail your payment to Granger, P.O. Box 22213, Lansing, MI 48906-22213.Why choose granger residential? Granger’s residential customers know our level of service is what sets us apart. In short, we treat you the way we like to be treated. Whether your business is large or small, Granger has a lot to offer you. We’ll work with you to meet the needs of your business.How do i request a quote from grangernet? Just fill out the Request Service form and customer service will respond with a no-obligation quote for service. If you would prefer to request pricing over the phone or via email, you can do so by calling 1-888-947-2643 or [email protected]. What is cart service with granger? Luckily, having cart service with Granger means your cart will be replaced free of charge in most cases. If your cart is in need of repair, contact us and we’ll deliver another cart to you on our next delivery day. Was this answer helpful ?