I have got a problem in which I want you help me solving. It is a question regarding contract law (U.K law) which says:

About 15 miles from Potters Bar, in quiet countryside, there is a clothing factory with its own factory shop. In the shop window there is a notice stating:

"Limited offer, twenty RD23 anti-fit jeans at £30 each. First come, first to buy"

Slinky, who lives in Potters Bar, hears about the notice from friends who have visited the shop. Slinky does not have a car and therefore writes to the shop ordering a pair of RD23 anti-fit jeans. In his letter, Slinky asks if the factory can send him the jeans by courier.

After posting the letter, Slinky decides that he cannot afford to buy the jeans after all. Slinky telephones the shop manger and cancels the order but the shop manager then says that it is too late because Slinky's letter has been posted. The letter arrives next day.

Advise Slinky.

Yours Sincerely