Ok I read all the posts here and thought of telling you the exact way how to be confident of you money.
First advice : Always make payment through paypal.
Reason : Paypal has a dispute settlement clause. Here is what you should do.
Imagine you placed an order for an essay with some bullsht website and they are now not responding. In such cases you should login to your paypal account and report a case of fraud with them. Paypal will ask the website owner to answer the reason of this failure. Please note that it is important that you should mail every communication mails, chats to paypal to prove your point.
When the website owner is not able to defend your questions, paypal asks the owner to make a full payment back to your account or else paypal blocks the account and in addition to that files a police case against the owner.
Its surprising that some websites are fraud but some are equally good. This detailed information was given to me by one of the tutor Emily on a website which I have been using since 8 months, expertassignmenthelp.com
I think they are not that big and most probably they are taken by some students who definitely are good at their subjects but still I dont encourage you to use these assignment services because one must do all the hard work to understand the concepts but if still you are using it please dont forget to report a fraud case to paypal as it really helps.
Elif