Samsung — Company not taking proper action against manufacturing defact

Sir I bought freeze model no RT2735TNBBL product serial no R3434PAC400802J dated[protected]. now my freeze is not cooling I contact customer center .my complain no [protected] dated[protected].service center staff came and told that gas leakeage from compresser automatically he charge rs 342 and I paid .him now staff demanding rs 850 for gas and rs 500 for re filling gas in spite of service center staff accepting its manufacturing defect of gas leakage within 2-3 years from compresser, now staff demanding charge, then I complain Samsung customer support center but they refused to help in this matter this is company product defect so company should do free of cost.i request you to needful action in this matter