Unfortunately Alison, you seem to elevate yourself (team) to a higher standing ground. Looking at your response which I suspect is pre-written it clearly raises doubts on your command of language.
Let me give you specifics and hope that you would follow my example and also provide specifics as to why you declined my application.
Dear Joseph,

We hire writers all over the world and we{ repetition} have many professionals from Kenya in our team who work on a freelance basis{"freelance basis" what else would they be doing?}. Also we { word order "We also"} have evaluated your sample essay and we {repetition} think that it is well written; {always put a space after every punctuation} however, the discussion is too general,{over use of commas} and no clear answer to the central question is given. Moreover, there are instances of confusing wording. Unfortunately, your writing skills do not meet our requirements. That is why we were forced to deny {inappropriate word should be "declined"} your application.
Please do not be discouraged. If you wish {missing comma} you can try applying again, but in no less than a year {very amateur}. We think that it is not possible to significantly improve one's writing skills and knowledge of English in{Wrong preposition} a shorter period of time{elementary wording}.
Thank you for your interest in working with us!
Best regards,
Alison
Writer bay Management
Kindly highlight the so called 'confusing wording'. Given that you have blocked my email, I seriously suspect this is a fraudulent company out to scan innocent freelance writers. I will be posting my thoughts online about your company shortly.
Kind regards.
Joseph
Please read the attached paper as well and let me know what you think about this online company "Writerbay".