Hi

I had booked a flight via Doha to Melbourne. The LHR/DOH leg has been moved back 3hrs, meaning I'll miss my connection to MEL. I can't be moved to a later flight as need to be in MEL by the original time.

I see 1 seat available on the evening flight before, via SIN, but BA.com won't let me change on-line....and BA won't let me phone....

Any idea on what to do please? I don't want to lose the only seat on the flight the evening before!

Thanks.