
If for some reason the products you ordered aren't effective with your clients, return them to us for an exchange, credit, or refund. We’ll make it right. Always.
This incredible guarantee is on all LinguiSystems products. We’ve had different reactions to this guarantee. Most customers are shocked. Some think we’ve lost our minds. But all agree it’s the best guarantee on the planet.
Return instructions are on the back of your packing slip.
Mail to: Returns, LinguiSystems, 3100 4th Avenue, East Moline, Illinois 61244 USA, or call 800-776-4332 or 309-755-2300, 8 a.m.-6 p.m. CST, Monday-Friday for a return authorization.

