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

{ "offers": [ { "sales_reference": "001055758201226 ", "seller": { "identifier": "001" } }, { "sales_reference": "001055758201630 ", "seller": { "identifier": "001" } }, { "sales_reference": "001055758103422 ", "seller": { "identifier": "001" } }, { "sales_reference": "001055758201069 ", "seller": { "identifier": "001" } }, { "sales_reference": "001055744500160 ", "seller": { "identifier": "001" } }, { "sales_reference": "001055758201622 ", "seller": { "identifier": "001" } }, { "sales_reference": "001055758201945 ", "seller": { "identifier": "001" } }, { "sales_reference": "001055742200029 ", "seller": { "identifier": "001" } }, { "sales_reference": "001055758201937 ", "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": "001055758201226___,001055758201630___,001055758103422___,001055758201069___,001055744500160___,001055758201622___,001055758201945___,001055742200029___,001055758201937___", "delivery_get_method": { "delivery_type": "home_delivery", "center_id": "0130" } }