This is Fixed???

I recently caught a Trojan on my computer and hired someone to come fix it. He took it for nearly a week and I just got it back on Tuesday. Since getting it back it has actually been worse than before! Suddenly my popup blocker isn't working at all. My browser has developed hiccups that make it slow loading pages and I've lost several of my photos that I had on the computer when he took it. This guy charged me $55 for this service and he has left my computer a total mess! Should I demand my money back?