The are clear with their terms and policies. They should researchpaperwritinghelp also have detailed policies available on their website. This way, you can understand exactly what is included and what's not. A good essay writing service will not guarantee their work, but will at least be transparent with their policies. It should take less than 10 minutes to read through their terms and conditions, so you can feel confident in making a decision. You should also be able to get revisions, if necessary.