I asked them to complete a worksheet for me. I spoke to one of their representatives and they assured me that they'd be able to do it. A few days later I get a call and they say that I need to pay more money in order for it to be done, so i paid. Bare in mind I gave them 8 days to complete it. On the day they were supposed to return it, they asked for a 12 hour extension, which I gave them. When they finally sent the answers, they had literally copy and pasted the same question and changed a few words here and there. Many of the exercises were not done, and most of them were simply incorrect, even I could tell. When I contacted them about this, they asked for 2 hours. After the two hours they asked for 12 hours, and then 24 hours. When they finally sent it, it was the exact same as before, there was no difference. I talked to their representatives many times and they gave the same answers and would not let me talk to the writers. I paid for incorrect work.