Common mistake
Comments like "logic unclear" or "language unnatural" are hard to act on without sentence evidence.
Judge whether correction, revision, polishing, score tools, teacher feedback, courses, or score-gap repair plans can produce verifiable diagnosis, evidence, and rewrite steps.
Any writing service should help you repair your own essay, not replace your answer.
Comments like "logic unclear" or "language unnatural" are hard to act on without sentence evidence.
If teacher feedback specifies one revision target, the next version is easier to execute.
Submit the prompt, original essay, target band, and the issue you most want to fix.
Rewrite the same paragraph according to teacher feedback, then request a second comparison.
These pages explain the Banfen Writing diagnostic and blocker-repair method, Task 1 overview, Task 2 development, and common score blockers.
Submit the prompt and essay, confirm the main blocker, scoring criterion, and essay evidence first, then decide whether you need correction, a course, a tool, or a longer repair plan.