Concise email communication

Concise email communication (no more than two paragraphs in the body of the email) to the customer that will inform them about the new delivery date and the refund to compensate for the inconvenience.
Communicate an internal plan regarding the refunding and redelivery of the shipment. You will draft a message to your colleagues in the Accounts Receivable and Shipping departments about the time frame of each task that clearly identifies who has which task and by what time it needs to be completed. You will need to select an appropriate tool to communicate this message to your colleagues and explain why this would be an effective tool for this purpose.