If they don't want to refund wait till you get your work back and say that it doesn't meet the requirements and you want refund. If you asked within five days of receiving your order they will have to refund most of it back.

I don't know how good they are but it can be huge risk. Once you pay the money for the work to be done it seems hard to get in touch with all these websites. If you want peace of mind try your best to find a local tutor who you can negotiate with and who meets your requirements. The work provided by coursework websites can be very poor. Coursework Expert or Coursework dom copy the work from the internet and charge lots of money. I know someone who used them and the work was declared plagrised by examination board and the person wasn't allowed to sit exams after that. They don't refund money either. So it can cause lot of frustration. You can loose money and it can cause embarrassment.

I had similar experience with Coursework expert. Their work was very poor and it was palagrised and they refused to give refund. Big con.