I hope that someone can give me advice on what is happening when I try to change my booking on-line.

I have a Premium Economy flex ticket HKG - CDG - HKG and I have already changed the return date once, on-line and with no trouble. I made this change exactly one week ago, on-line, and it is updated and confirmed, both on teh website and also in the revised E ticket that I got by E mail.

I need to change my return date yet again, but when I went into manage my booking, this is the message that greeted me "...The online ticket change function is temporarily unavailable as your previous online booking transaction is still being processed. Please try again later or contact our reservations office for assistance...".

I can't understand why they are claiming that my previous change is still being processed, since it has been confirmed and updated for a week now. Is this just a system bug which will disappear, in your experience ?