Looking for reliable online GRE exam help from real students?

My work sent me on an unexpected business trip this week, and my GRE exam is scheduled for Friday. I have no time to study in the hotel, and I cannot reschedule because the application deadline is next week. I need to find a trustworthy service that provides online GRE exam help. Has anyone here used a service where a specialist takes the test for you? I am mainly concerned about the proctoring software and whether it is truly safe. I would appreciate hearing about your personal experiences and recommendations.