They are very helpful and respond quickly before you pay, Once you pay, they will never ever respond to any of your email, I asked for a help for an assignment and they sent me something totally different, like the closest pdf file that they did not know what it was, when I tried explaining that this wasn't the assignment I sent, they ignored my emails for like 2 whole days, when I try to chat with them, they would literally cut me off once I ask about my situation. Just avoid them at all costs!