Some advice please. Malaysian airlines did not transfer flight ticket to emirates.

My flights from Kuala Lumpur to the UK with Malaysian airlines were cancelled and moved to Emirates. I tried to book in at the airport as advised by Malaysian airlines when I couldn’t book in online.

Emirates are saying the ticket number from Malaysian airlines is not capable with their system and we have to wait 7hrs until the Malaysian airlines desk opens.

Do I have any options here?

Could I pay for the flight and claim back or am I screwed.