Dripshipper lists products from more than one roaster. The vendor on the product is the one who fulfills it and the one whose default address goes on the label if you are not using your own address or the FDA-Compliant Address Service.
Temecula Coffee Roasters — default line: Distributed by Temecula Coffee Roasters. Temecula, CA 92590. The $30 FDA-Compliant Address Service (Oceanside) is only for these products.
Old Chicago / Calutech — default line: Distributed By: Calutech Inc, Orland Park, IL 60462.
Do not mix them. A Temecula coffee cannot use the Calutech line, and the other way around.
Pick the vendor in the custom-label form so the SKU and the address match. How to create a custom label · FDA-Compliant Address Service