Sony Ericsson W200i — instead of changing 6 times mother board ,but not working still properly,and no replacement done by company.

I have changed my mobile sony phone w200i mother board atleast 7 times and 8 times speaker, but not working still working properly, i have requst to company to give me new piece, but no reply ang ignoring too..

as i have not yet received my mobile from service centre, as it is only 6month for purchasing the mobile..

as i have also rqusted company that if my phone will do after warranty, then it is gone for ever, but no reply from there site.

BHAVYA DOSHI