"The issue has nothing to do with whether or not the company is "happy" with you. The issue has everything to do with whether or not the company lies about (and/or intentionally withholds) your skills to prospective customers".
Hello, and thank you for making your point clearer. I still get the impression you are saying I couldn't be writing those briefs because I'm not a native speaker. To me that's discriminatory as - to memory - there is no part of the freelancer contract I signed which states you have to be a native speaker in order to complete an assignment. Now, perhaps there are people who don't know the difference between academic essay writing and colloquial English (although I would have problems about such claims since I am quite fluent in my spoken English too). However, what would interest me much more professionally are some examples of what you term 'non-errors' or slight cross language disturbances (which is what I, as a linguist, would call them). According to your previous post native speakers perceive a difference which - as you put it - are an immediate indication that whoever is writing is a non-native. If you allow me, the reason I'm querying that is that, at Reading University, where I conducted an MPhil Research higher degree course - I was taught that academic writing skills have no bearing at all with you native/non-native command of the English language. It's all to do with structuring your essay and argument - but it's nothing to do with where you're from. Thank you once again for your time, sincerely, Raffaella Cantillo