my $85 mistake

As you may know i work selling appliance parts for my family buisness. Today i recived a shipment of a stupid misunderstanding between me and the customer. I didnt get stuck with the bill... my mom did. I still feel horrible about it. Who is going to want to buy a brand new dishwasher motor which costs $106.30 when you can buy a whole new dishwasher for $170?

oh well... May the Lord surpise me and use this mistake and bless someone out of it.