(a) such a change results from a duly authorised sale in good faith or a lease of goods or services in the course of the seller`s normal operations; all the conditions for such a change (including nominal value and duration) are set out in the documents; all the services required by the seller under the contract with the buyer have been concluded and there are no undisclosed conditions or agreements related to such sale or lease; 8.2 Notwithstanding the justification of the interest of the above-mentioned guarantee, the relationship between the parties is that of a buyer and a seller of foreign exchange, and not that of the lender and the borrower. A sales contract is signed before the exchange of goods or money. (b) immediately pay to the bank all funds received by the seller upon payment of a change acquired by the bank; (i) seller`s performance or provision of this Agreement or any other communication under this Agreement, nor the transactions contemplated in this Agreement, nor compliance with the terms, conditions and provisions of this Agreement: (i) against any provision of any law, statute, rule or rule submitted to Seller or judgment; a regulation, arrangement or authorization that applies to the seller; (ii) with an agreement in which the Seller is involved, in conflict or late, or by signing a copy of such letter below and sending a copy of such letter to the bank, the Seller acknowledges that the Contract has not been altered in any way. . . .