Sony Ericsson — ear speaker not working manufactured fault

Address:

Delhi

C905 Has lost the sound from the earpiece speaker, when you run the service test I get sound if I hold down the "C" button. i have already replace the handset and i am facing same problem again.when i was discussed this fault with ur local sony ericsson store they said its a manufactured fault and same problem facing my other people . so i want my money back or i other handset asap.