I'm booked on a VSPPRBW2 fare FRA-DTW-LAS.

Having entered my Reservation number into Galileo Viewtrip it returned a confirmation 'confirmed for economy-class'.

However today the system shows 'confirmed for thrift-class'.

I've never seen this. What is the practical effect of thrift-class compared with eco? Will this have any effect on possible upgrades?

Thank you for your help!

Added: Im booked on a KLM ticket (074) with NW as carrier and NW flight numbers.

[This message has been edited by ralfkrippner (edited 03-26-2002).]