False promises
I used expertwriting service for Master's degree research paper. First, I paid extra to get a native speaker, expert writer which was a big scam because it was obvious that the writer wasn't a native. The language was poor and the paper was filled with mistakes. When I told them about the mistakes they asked me for a report.
Second, I got my paper after 5 days of the deadline. The writer kept asking for more time and money to finish the work because it will take more pages to cover everything. He didn't write neither an abstract nor a table of contents, not even page numbers! I asked for 1.5 spaces and he used double. Event that the writer kept ignoring my instructions everytime I asked for revision. I paid almost 2200 dollars for a lame, unprofessional research paper.