Regarding the Global Excellence Scholarship

Hello, last month I received my conditional offer from UCD and they gave me a 6000 euro scholarship. After this I applied for the Global Excellence Scholarship and noticed that the decision of this comes after my deadline for accepting their offer letter, which is May 1st. So what should I do? I cannot afford UCD without a scholarship and their deposit amount is a little bit too much for me to pay blindly without any certainty that I'd get their scholarship. It would be great if someone could reply quickly.