In July I was offered a GBP 109 upgrade from a discount economy fare LHR-IST for October. Late change of plans and had to fly a day later. Cancelled the original and bought another economy fare. Was offered another POUG for GBP 109.
BA obviously did quite well out of me financially but I was surprised to be offered twice. The J seats seemd reasonably full
NB: the flights credited J points and status credits to Qantas