You are right Oldjim, neither Scan nor Palit mentions any T&C on their website or printed invoice. I think this is something to be looked upon. Cause whatever method Scan or Palit used to calculate the value of refund is not made known to the user, which is not a right thing to do.
And yes, we are yet to hear from Scan reps here. Maybe they could at least let us know how they calculate the refund value.
Btw, I'm not sure if it's just Palit's card or it's a fundamental problem with 7900GS reference board. The card has a very short life span. This card I RMAed is acutally a replacement card for my earlier 7900GS. Maybe it's just pure bad luck, having 2 cards died in less than 12 months time each.