Please donate and help to pay for my PhD viva

Hi I'm Jinyi and I'm about to finish my PhD. My viva is set to happen on 8th May, and my external examiners have agreed to examine me on site in line with tradition. However, my university can no longer afford £250 return train tickets for my examiners to travel here. So I hope I can raise enough to pay for my viva to be in person despite this sudden rule change and unforeseen circumstance.