Micromax Mobiles — Unethical behavior from the service office in my circle

Address:

Ernakulam, Kerala

I have given my micro max mobile for repairing in authorized service center by micro max. I submitted my mobile for resolving the problem regarding, 4305 connectivity no USB cable connection, 4403 No incoming Audio, 4407, No audio in loud speaker, 4911 display touch screen not working. (these data from from the job sheet) my mobile has repair warranty, but whenever i contact with the service center they are not giving any replay. They always says that will resolve the issue soon..Its already one month over(169215).