I feel the order should have been sent as a whole 12 yd pc. reasons:
1. you as a business can't ALWAYS choose options based solely on "what is cheaper". For yourself OR the customer.
2. Not everyone, myself included, checks email daily. I travel alot and don't worry about email until I return home and even then I consider it a "catch-up" task.
3. If I order something online I figure in the cost of delivery and my purchase according to my own budget.