A support contract is usually a one-time contract which, taking into account the party whose benefit is exploited by the contract, enters into the main or principal contract, which sets additional conditions for the same purpose as the main contract.  For example, an ancillary contract is entered into when one party pays the other party a certain amount for entry into another contract. An ancillary contract may be entered into between one of the parties and a third party. Accompanying contracts are an exception to the practice of contractual doctrine, which states that a contract cannot impose obligations or rights on a party not related to the contract.  However, in cases where a security contract is entered into between a third party and one of the contracting parties, the Court may authorize rights or obligations to the non-contracting party, as outlined in the previous unauthorized Donoghue/Stevenson case.  PandaTip: This is a basic model for warranty agreements. It guarantees a value as collateral for a monetary debt. In most cases, you need a separate loan agreement to define the terms of repayment of the listed debt. The project must have specifically or tacitly requested the main contract and its declaration of forgiveness must have motivated the inclusion of the other party in the main contract.  According to Lord Denning MR, a support contract is considered binding „when a person gives a commitment or assurance to another who intends to react by entering into a contract.”  In the English case Barry v Davies, it was found that an auctioneer and a buyer had entered into a secondary contract.
 It has been found that, although the main contract does not concern the incense, the benefits granted to the bid represent a good consideration for the increase in the price of the offer.  A theory confirms that it is possible to qualify the establishment of an auxiliary contract for a third-party beneficiary, since the letters of credit are driven by the need of the purchaser and, in according the theory of Jean Domat, the origin of a letter of credit, that a bank issues a credit in favour of a seller in order to exempt the buyer from his obligation to pay directly to the seller with a legal offer. There are three different companies involved in the letter of credit transaction: the seller, the buyer and the banker. Therefore, an accreditation contract is theoretically understood as a guarantee contract, which is accepted by a behaviour or, in other words, as a tacit contract.  It is briefly called LOC It can also be reissued as follows: An auxiliary contract is a contract that leads a person to enter into a separate „primary” contract. For example, if X agrees to purchase Y products manufactured by Z accordingly, based on Z`s assurance of the high quality of the goods, X and Z may consider that X and Z have entered into a guarantee agreement consisting of Z`s promise of quality made taking into account X`s promise to enter into the main contract with Y. A support contract is a contract by which the contracting parties enter into or promise another contract. The two treaties are therefore linked and can be applied, even if they are not a constructive part of the original treaty.  In JJ Savage and Sons Pty Ltd v. Blakney, a mere expression of opinion was not deemed sufficient to be kept as a promise. In Crown Melbourne Limited v Cosmopolitan Hotel (Vic) Pty Ltd, a statement from a landlord to the tenants considered when negotiating a lease agreement that they are „supported during the extension” would not bind the lessor to offer another five-year lease.
 PandaTip: The proposals of this legislature are brief and cover the main points of a collateral agreement, while the details are left to the law of the established contracts.