An offer, its acceptance and their revocation (withdrawal) to be complete when it must be communicated. When the contracting parties are face to face and negotiate in person, a contract comes into existence the movement the offeree gives his absolute and unqualified acceptance to the proposal made by the offeror.
The following are the rules regarding communication of revocation:
- As against the person who makes it, when it put into a course of transmission.
- As against the person to whom it is made, when its comes to his knowledge