The idea was to put the risk on the offeror and that is one principle which can be taken from the postal acceptance rule and transferred to the case of email and fax acceptance. Negotiations are just beginning at the stage of an invitation to treat.
If you have a real situation, this information will serve as a good springboard to get legal advice from a lawyer. Judgement The Privy Council decided that no contract existed between the two parties. In such situations the onus is on the buyer to take possession of the goods by collecting them himself or herself.
In Carlill v Smoke Ball Company it was held that performance is acceptance in some cases and in certain cases there is no need for an acceptance to be communicated. If for instance the police put out an appeal for information and offer a reward one does not need to contact the police — accept the offer and then go and try to ascertain the information.
The offeree would ponder the matter and then communicate acceptance by post.
The offeror might be given an acceptance by a second offeree in the interim — this second offeree might do so by more immmediate means such as in person. There would be some delay between the letter of acceptance being sent and it being received.
When one sees the timetable although the terms of carriage are pre-defined there is still some negotiation to be done. Therefore for this and many other reasons this is an invitation to treat and not an offer.
The last form is the one that is actually agreed to and that is the one that creates the contract. A display of goods in a shop window is a classic example of an invitation to treat.