Applicants have to fill in and submit the online form together with the payment. After you send the form with your information, the application will prompt you to pay your fee using your credit card (or your PayPal account if you have it). You do not have to have PayPal account to make the payment.
After the payment is received, the applicant will receive a notification of acceptance. REGISTER BEFORE May 20.
SPLIT RS covers participation fee for two graduate students. This year the students are selected from universities located in Central or Eastern European countries with low HDI (http://hdr.undp.org/en/2018-update) based on their financial needs. Supporting letters from their research mentors are required. The decision could not be appealed.