Sony Ericsson — Mobile Phone FM speaker problem

Dear Sir,
I purchased Soney Ericsion W350i. i am not happy with your services even your services center. in your W350i have FM sound problem. FM radio sound is too low, even you are on FM radio in speaker thenafter sound volume is too low i visited in your authorized sales person & services center, they are asking that this is the manufacturing problem.
Now you people tell me what should I do, if sony Ericsion made that kind of fault in manufacturing than what is difference between local phone & sony ericsion. Both companies are similar in fact local made mobile phone is cheaper rather than sony ericsion. FM speaker sound quality is not good.

If you have any solution for my problem please tell me


Kindly do needful ASAP

Thanks & Regards

Pradeep Kumar Joshi