123 My Street Mytown Mypostcode 1 April 2000 Seller Address Postcode Dear Sir/Madam [Reference: brief description of goods] I refer to our contract in which you agreed to supply [goods] by a specific time, namely [date]. Since you have not delivered the items by that date, and as time is an essential feature of our agreement, our contract is now at an end. Unless I receive a refund of the full purchase price of (£ ) within seven days of the date of this letter, I intend to issue a summons against you in the Sheriff [County in England] court without further reference to you. Yours faithfully