If we enter into a contract, we expect the other party to respect and respect its commitments. If they fail to comply with these obligations, it may be necessary to send them a contractual letter of credence. Infringement is infringing when one or both parties to a given contract violate the terms of their agreement. When we talk about breach of conditions, it may mean that a party has not provided goods or services or has not paid the amount set out in the contract. In this case, the aggrieved party should send the bankrupt party a contractual letter of credence requiring payment or performance of an obligation. You can terminate the contract. If you implement a contract, it is as if the contract never existed and you have to return everything you received as part of the contract. However, this means can only be used if it is possible to redo things as they were before.