I used to work for a company that shipped products. It was a pain in the butt to have customers ship stuff back to us, even if we sent them 2 or 3 of something

I used to work for a company that shipped products. It was a pain in the butt to have customers ship stuff back to us, even if we sent them 2 or 3 of something by mistake. We did this all the time. Well handled though.