You're quite right,
newswatcher - this is a bit of a grey area (as far as the credit card companies are concerned, anyway). The Office of Fair Trading takes the view that
all credit card transactions are covered by section 75, but some CC companies beg to differ. Some say that all transactions are covered; others say they will look at each individual case.
To add fat to the fire, draft EU legislation, currently under debate, would result in section 75 being abolished to bring the UK in line with the rest of Europe, which has no such protection.