We had the same problem until we switched to a provider that actually invests in their pick and pack process. What I appreciate about pick and pack services is the accuracy and speed. They maintain over 99% order accuracy and provide real time inventory tracking through their system, so we always know what is in stock. They handle everything from single item orders to complex multi item shipments with custom packaging and branding. Their team also manages returns efficiently, with items inspected and restocked within 24 hours. They are located near the Port of Tacoma and major highways, which helps with shipping speed. I have been using them for over a year and our return rates have dropped significantly. If you are tired of pick and pack errors, this provider is worth a look.