You are arun malhotra of no 10, ashok vihar, phase 1,newdelhi. two months ago you bought a washing machine from m/s gupta & company , kamla nagar, new delhi. now you discover that it is not working properly. write a letter, in about 100-150 words, to the manager, complaining about the malfunctioning of the unit and asking them to replace it against the warranty that goes with it.