I have purchased D-1600 hier set from on 4th June 2007 and get repaired twice from hier service station till date. Now they have issued replacement certificate, as they don't have parts available with them. I am going to Neeta Enterprises, FCA-103, MUKESH COLONY, BALLABGARH since 5 days but they have not replaced my phone. I am a chartered accountant and i am loosing time and money because of that mobile set instead of services!