The worst CV writing services you could ever get costs a lot for nothig.
Usually CV writing services contacts you via a questionnaire or by a phone interview in order to write your first draft and advise on the keywords you should use you only discover that they do not do that after your purchase. What they only do is to rephrase what you have written without even understanding what they are writing about. In the same phrase they linked two ideas that are totally different and have nothing in common. If I submit their CV I would be rejected at first sight. So do NOT waste your money like I did