Wholesale Janitorial supply company needs promotional postcard

This is what a business in United States was looking for in their postcard design

We need a postcard designed to entice old customers who stopped buying their janitorial and maintenance supplies( cleaning chemicals, paper supplies, etc) from us. We wanted a "we missed you" type theme, offering a 15% discount on your next order of $300.00 or more. Colors are green with black and white accents. Our website is delvel.com, it will give you a better understanding of exactly who we are. Read more