Emirates Flight Change Website Not Working for Urgent Rebooking

I am booked on an Emirates flight from London to Cape Town on 11 August and I urgently need to change this ticket due to an emergency situation. Since this morning I have been trying to make the change through your website, but the system keeps looping and sending me in circles, so I cannot complete the date change or reach a clear option to proceed. Because of this technical problem I have not been able to move my flight to the dates I need, which are around 25–26 August, and I am running out of time to resolve this. I am very stressed as this is an urgent matter and I cannot find a working contact number or reach an agent who can help me. I request that you urgently contact me by phone on +44 7871 273***, assist me directly in changing my London–Cape Town flight from 11 August to around 25–26 August, and provide a clear solution without making me continue to struggle with a website that does not work properly.