Question: Can an employee be held liable for the courier costs if a parcel is despatched to the incorrect address?

Answer: I would deal with this as such:
Fact – employee made a mistake and is accountable, unless address was provided incorrectly to them or they followed direct instructions. It has caused delays and has financial & client implications so cannot merely be swept under the carpet and equally we do not want a repeat of such and need to set examples. Hey,we all mess up. The employee could be “punished” in an either/ or scenario. They could be asked to pay for the mistaken fees and would have to give signed consent to such ( I.e. Signed acknowledgement of debt)- cannot merely be deducted as this is unlawful. Failing which they could be disciplined via a written warning for negligence. It cannot be both as this is double jeopardy.

Helpful Resources … Dig Deep