Student or Learner
This is not again to ship the goods to the wrong destination by Wendy, but is the wrong consignee's information provided to the forwarder, and need provide them a letter for this revision. Seems she is quite much careless mistake when prepare the shipment and did not aware the seriousness. I will talk with her later and try to monitor closely with her work to less the fault. I hope I can.
I'm afraid the first part is not clear in meaning. If what I have written below is not what you meant ask again.
This time Wendy didn't ship the goods to the wrong destination, but she did provide the forwarder with incorrect details of the consignee, and so we need to provide them with a letter for this revision. It seems she is quite prone to making careless mistakes when preparing shipment documentation and is obviously not aware of the seriousness of this. I will talk with her later and try to monitor her work more closely with the aim of preventing further errors.