On 16 December 2011 we placed an order with your firm for 12,000 ultra super long-life batteries. The consignment arrived yesterday but contained only 1,200 batteries.
This error put our firm in a difficult position, as we had to make some emergency purchases to fulfill our commitments to all our customers. This caused us considerable inconvenience.
I am writing to ask you to please make up the shortfall, we may have to look elsewhere for our supplies.
I look forward to hearing from you by return.
Yours sincerely
J.Wong
Purchasing Officer