2, the format terms are not necessarily invalid, according to the relevant provisions of the Contract Law, the format terms, if the other party in the conclusion of the contract to the other party to make a full description of the terms of the format terms of the restriction of the other party's rights to remind the other party to pay attention to the circumstances of fraud or coercion, or collusion with others in bad faith to the detriment of the interests of the other party, it is a valid provision, the parties should be bound.

3, the owner of the building you say "coupons, tickets, phone cards, etc., write the expiration date of the terms" is not infringement: If the conclusion of the contract, to provide the format terms of the party (i.e., coupons, tickets, phone cards, the issuer) did not make a full explanation to the other party to draw attention to, there is indeed an infringement of the right of consumers to know! Suspicion, if the consumer has evidence to prove that the conclusion of the contract has not been reminded of the attention, you can sue to confirm the invalidity of the format terms. But the reality of this evidence is difficult to find, and the litigation time is too long, the cost of litigation is too high, and the amount in dispute is not large, so most people choose to give up litigation to protect their rights, can be negotiated negotiation, can not be negotiated, to the Consumer Council complaints to no avail, may be given up.

Attached: the relevant basis

(1) Article 39 of the Contract Law: the use of form terms to conclude a contract, the party providing the form terms shall follow the principle of fairness in determining the rights and obligations between the parties, and take a reasonable way to draw the other party's attention to the provisions of the exemption or limitation of their responsibilities, in accordance with the other party's request, the provisions of this clause to be clarified.

Format clauses are clauses that are pre-drafted by the parties for the purpose of repeated use and are concluded without consultation with the other party.

(2) Article 40 If a form clause has the circumstances stipulated in Articles 52 and 53 of this Law, or if the party providing the form clause exempts its responsibility, increases the responsibility of the other party, or excludes the main rights of the other party, the clause shall be invalid.

(3) Article 52: A contract shall be invalid under any of the following circumstances:

(1) a party concludes a contract by fraud or coercion to the detriment of the state interests;

(2) malicious collusion to the detriment of the state, the collective or the interests of a third party;

(3) the use of a lawful form to disguise an unlawful purpose;

(4) the detriment of the social public **** interests;

(v) violating the mandatory provisions of laws and administrative regulations.

(4) Article 53 : The following exemption clauses in the contract shall be invalid:

(1) causing personal injury to the other party;

(2) causing damage to the other party's property due to willfulness or gross negligence.