Dear :

We have repeatedly requested you to open the Letter of Credit, so as to enable us to ship your order in time. To our disappointment, however, we have received no reply from you so far.

Your continued silence has placed us in an awkward position. We shall have no alternative but to cancel the shipment unless your Letter of Credit reaches here by [date]. In the meantime, we reserve the right to lodge a claim on you for the losses incurred.

Please let us hear from you today.

Sincerely yours,

[name]

[title]