Sony VAIO - VGN B3xp — Motherboard change

Sir,

I want to complain against Sony. Recently I had given my laptop to a sony service centre in Mumbai ( Andheri East) as my laptop wasn't working. Sony Informed me that my motherboard is damaged and needs to be replaced. I wasn't willing to replace the motherboard and I took back my laptop. On showing the same laptop to my company's IT department they informed me that the motherboard has been changed as the company's initial was missing from the motherboard.

On contacting Sony they are asking me to get the laptop back to them, but they are saying that this thing cannot happen with them and that they cannot help apart from checking the motherboard again.

Please look into this matter and help me with the same.Details of my laptop are as mentioned below.

Model: Sony Vaio VGN B3XP
Serial No: 5300897
Sony Job No: 10603496

Regards,

Karan Murarka