Tou tou qi qi property advertisement

Hello, the red envelope activities carried out by various APP platforms are called "lottery contracts" in civil law theory. This kind of contract is similar to "advertising with a reward", that is, an offer is made to an unspecified person. The moment the person who draws a red envelope gets it, it is regarded as a promise to the offer, and the rights and obligations of both parties have been clarified since then. The sponsor of the red envelope activity needs to fulfill the obligation to pay the red envelope amount according to the offer, otherwise it will constitute a breach of contract.

Regarding what you said, is it illegal to void a red envelope after it is drawn within the time limit? Generally speaking, when the APP platform conducts a red envelope activity, it will explain and announce the contents of the activity, which will inevitably include the contents of the red envelope collection period, which is regarded as part of the offer, while the person who draws a red envelope participates in this activity, which is regarded as accepting all the contents stipulated in the offer. Therefore, it is invalid not to receive a red envelope within the time limit, and the APP platform does not violate the law. However, if the organizer of the event does not announce the content of the red envelope deadline before the event, it shall not set the deadline without authorization, otherwise it will constitute a breach of contract.