Por la compra de 3 unidades iguales o combinadas de los siguientes artículos, GRATIS el de menor importe

{ "offers": [ { "sales_reference": "001018924702063 ", "seller": { "identifier": "001" } }, { "sales_reference": "001018924701065 ", "seller": { "identifier": "001" } }, { "sales_reference": "001018924702089 ", "seller": { "identifier": "001" } }, { "sales_reference": "001018924702154 ", "seller": { "identifier": "001" } }, { "sales_reference": "001018924701081 ", "seller": { "identifier": "001" } }, { "sales_reference": "001018924701073 ", "seller": { "identifier": "001" } }, { "sales_reference": "001018924702113 ", "seller": { "identifier": "001" } }, { "sales_reference": "001018924702139 ", "seller": { "identifier": "001" } }, { "sales_reference": "001018924702097 ", "seller": { "identifier": "001" } } ], "subsite": { "identifier": "supermarketHipercorStore", "parent": { "identifier": "supermarket" } }, "query_params": { "centers": { "home_delivery": "0130" }, "is_full_documentation": false, "is_include_offer_availability": true }, "query_list_get_method": "001018924702063___,001018924701065___,001018924702089___,001018924702154___,001018924701081___,001018924701073___,001018924702113___,001018924702139___,001018924702097___", "delivery_get_method": { "delivery_type": "home_delivery", "center_id": "0130" } }