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

{ "offers": [ { "sales_reference": "001055762200016 ", "seller": { "identifier": "001" } }, { "sales_reference": "001055762200032 ", "seller": { "identifier": "001" } }, { "sales_reference": "001055740500354 ", "seller": { "identifier": "001" } }, { "sales_reference": "001055754401788 ", "seller": { "identifier": "001" } }, { "sales_reference": "001055762200024 ", "seller": { "identifier": "001" } }, { "sales_reference": "001055760501449 ", "seller": { "identifier": "001" } }, { "sales_reference": "001055754401796 ", "seller": { "identifier": "001" } }, { "sales_reference": "001055756700047 ", "seller": { "identifier": "001" } }, { "sales_reference": "001055756700039 ", "seller": { "identifier": "001" } } ], "subsite": { "identifier": "supermarketStore", "parent": { "identifier": "supermarket" } }, "query_params": { "centers": { "home_delivery": "0130" }, "is_full_documentation": false, "is_include_offer_availability": true }, "query_list_get_method": "001055762200016___,001055762200032___,001055740500354___,001055754401788___,001055762200024___,001055760501449___,001055754401796___,001055756700047___,001055756700039___", "delivery_get_method": { "delivery_type": "home_delivery", "center_id": "0130" } }