Managing My Business

I am an existing customer and need to program my credit card processing equipment. What should I do?

If you recently purchased new equipment from us – the equipment should be ready to use. If you purchased the processing equipment from another vendor, or already have a terminal you wish to use – contact our Technical Support Team; they can guide you through the reprogramming procedures. Read more

How can I order card acceptance stickers for my shop front?

To order card acceptance stickers, contact our Customer Support Team. Read more

My business recently changed from a sole proprietorship to an LLC. How do I update my account?

This is a legal change. You need to fill out paperwork detailing the change, and provide any supporting documents to us. Read more

I recently moved my business. How do I update my terminal to print the correct address?

To update the address of your business: Complete the request form and return it to us via email or fax. To keep your account secure, you must verify your account by providing the Merchant ID and the last four digits of the federal tax ID on file. Read more

I am selling my business, but the new owner would like to continue on with your services. How do we make this change?

To transfer business ownership, contact our Customer Support Team. Read more

How do I add or remove PIN debit, EBT, Voyager/Wex or American Express/Discover?

To add or delete any one of the above, contact our Customer Support Team. Read more

How do I cancel my account?

To cancel your account, contact our Customer Support Team. Read more

How do I re-order supplies?

To re-order supplies, contact our Customer Support Team. When you call us, follow the prompts and let us know if you are a Merchant Club member. Read more

Who can I contact for support with my invoicing solution?

For support with your invoicing solution, contact the NMI Invoicing Solution team. Read more

How do I update my telephone number?

To update the phone number for your merchant account: Complete the change request form on this page. To keep your account secure, you must verify your account by providing the Merchant ID and the last four digits of the federal tax ID on file. Read more