This looks like the MBNA card with fee - without fee, the earnings are half.
Originally Posted by
G-BOAC
Note it's
to PE not
from it

IIRC, this same offer (Y->W upgrade voucher) was used when the BA cards were first introduced. Disappeared after a couple of years though.
And IIRC the VS offer is only from qualifying fares (i.e. not the cheapest).