Originally Posted by
andymac66
There actually won't be any refund of Asia Miles as LHR-SYD requires the same number of miles as GRU-LHR-SYD (120,000 in First). I was curious as to what would happen of I just turned up for the LHR-SYD flight without getting the ticket reissued. There would surely be a big increase in the taxes and fees if the ticket was reissued with LHR as the starting point.
BA would refer you to AsiaMiles to resolve the ticketing. It's possible the computers wouldn't spot the issue, but the more likely outcome is that OLCI simply won't work.