Accept Credit Cards. Simply. NDMS is a tier one direct payment processor. We enable your business to authorize and transmit payment transactions by credit cards, debit cards, private label cards, gift cards, business cards, and other electronic payment methods. We settle the transactions through the MasterCard® and Visa® networks (American Express & Discover also included) and deposit the funds directly into your business checking account. NDMS delivers industry-leading payment solutions for businesses of all sizes and types, targeting both on-line and off-line businesses ranging from the corner market to the largest e-tailer. Known for our impeccable customer service, we go far beyond the basics in helping our clients grow their businesses with care and innovation. Our 24/7 customer service team handles any adjustments, chargeback processing, merchant billing and account activity reporting.