DELL venue pro Poor service.

I purchased a Dell venue pro on 30-march-2011,I have been having problems ever since.My handset speakers stopped working within a few weeks,so i had to make calls only using speaker phone. I took it to the DELL service center and got a replacement.I had the very same problem once again,on the new handset within weeks. I got a replacement once again. BUT THE I HAD THE SAME PROBLEM WITH THE REPLACEMENT I RECEIVED TOO. NOW i am using the 4th DELL VENUE PRO replacement, and i have the same problem once again. I approached the service center and they agreed to give a replacement. the promised me ill will get a replacement in a week. 14days have passed i still havent got my replacement. the service center keep giving some reason or the other, when i try enquiring about the phone, they dont give a satisfactory response.

Its really surprising, how a reputed brand like DELL, give such a poor service. I deeply regret buying a dell mobile. I would appreciate any Dell representative reading this could help me out.