What services does flagship offer? Some of these services include: Janitorial Services, Security and Monitoring, Landscaping, Recycling, etc. It’s who we’ve always been Our values guide the way we act and reinforce the unique culture that makes Flagship the quality organization it is today.What is the address for flagship credit union? Flagship Credit Acceptance P.O. Box 965 Chadds Ford, PA 19317. Customer Service. 1-800-900-5150. Hours: Mon-Fri 7am-7pm CST, Sat 7am-5pm CST. Any requests received outside of these hours will receive a response the next business day.Where do i send my flagship credit acceptance? Flagship Credit Acceptance P.O. Box 965 Chadds Ford, PA 19317. Customer Service. 1-800-900-5150. Hours: Mon-Fri 7am-7pm CST, Sat 7am-5pm CST. Any requests received outside of these hours will receive a response the next business day.