Sony India — sony television service center recovery amount

Address:

506001

I mr.rahman r/o hanamkonda wgl telangana my t.v. was problem n 5-3-2018 so i went to sony service center they said picture seizing problem so taken me advance amount 5000 i receipt but that part is not available so they in part cost by d.d.i paid only they given me new t.v. but they before taken advance amount they are not refunding already i given complaint in sony customer care complaint number is 47236481 but there is no response please kindly take action