The subject line for the direct request that would be most suitable is c.Incorrect Order No. MB554-14 Shipped.
The issue is about returning an order that was incorrectly sent to the customer so the subject line should highlight this.
The best subject line would therefore be one that starts with, "incorrect order...shipped" with the elipsis being for the order number of the product.
First part of the question is:
If you have the white mini blinds in stock and can ship them to me within three business days, please do so. If not, please refund my credit card charge immediately and provide me with shipping labels to return the incorrect order to Haley Wholesale.
Find out more on making order returns at https://brainly.com/question/27409367.
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