Karbonn A12 problem in speakers and volume buttons not working well?

Last month i purchased a new handset from Karbonn as i found this handset very reasonable under it's price range. When i bought it up i laminated it and thereby i thought that the problem in pressing the volume button is due to the hard lamination. Apart from the volume button it was also giving very rough sounds which i thought due to it's lamination quality.

After a while when i get irritated i put the lamination off from the mobile phone and encountered a manufacturing defect. What should i do know it looks like my money is totally wasted. Please help.

I think it is a manufacturing defect and you must go the nearest service center and tell the problem i think it will work out. If it does not work out then file a complaint against the online retailer from whom you purchased this device.