A British Airways informa:
Important change to Book with Confidence & Flexibility for existing bookings Trade GDS Policy
Key highlights below, which are update in the document in red for ease of identification
• Removal of no show exception
• Removal of relaxed ticketing time limit
Important reminder
When reissuing a ticket with a lower fare value, you must simultaneously issue a non-refundable EMD (code RSVT RFIC D/99I) for the residual amount. If your GDS does not support this functionality, do not exchange the ticket as we will complete the process for you via this webform.
Regards,
British Airways