Seagate ST3750840AS

My drive twice failed to format when new, after that it was fine... it was used to back up 2 of my pc's.. it was used to play music from for about a month, then one day it "lost" 1/3 of the data, a restart "lost" another 1/3... I tried to copy some of the lost data back and despite the drive not listing the items, it (the OS) said this file already exists... Hmmm

Now it isnt recognised by the system at all, and hangs the machine if it is attached.

Seagate refuse to honour the warranty as it was bought from a computer fair and they say the vendor isnt an approved Seagate dealer... Great.... NOT

I wanted to talk about their warranty procedure. You type in the serial to the website & they tell you their address with a unique number to put on there too. That's fine, apart from the fact that you have to pay postage which is around £3. But after about 3 weeks they said it was on it's way back to me refurbished. After 11 more days I asked them where it was. They said it's tracked by DHL. So I looked at the tracking & it said 'Delivered to Walker' which isn't any of my names! Still waiting for them to get to me with a reply 3 days later. Anyone else had a similar experience? (I'm referring to a 750GB drive)