请帮忙译译:"Alex的申请终获接受并且预约7月16日取证,费用800元是否先由我代垫然后向他收取?"谢谢

Alex的申请终获接受并且预约7月16日取证,费用800元是否先由我代垫然后向他收取?"
Alex's application is finally accepted. The appointment date for getting visa (or passport) is on July 16. Shall I pay the fee of $800 first and then ask him pay me later?

The Alex's application attains finally accepts, and the appointment on July 16 collects evidence, whether the expense 800 Yuan then do gather first by my advance money to him