Originally Posted by
Roger
Probably none for cardholders, though Tesco will earn more in fees from merchants and some of those may not be too happy.Just 10 days to object? Even Tesco customers may be away and unable to read their snailmail.

Yup, streamline are charging an additional 0.8% processing charge for "World" mastercards (on top of normal mastercard %). Though not sure how retailers would be able to distinguish online, obviously in store they can see the card logo!
I obviously wasn't reading the small print as I didn't see an option to keep the old mastercard, that will teach me!