Corrections exactly like the original

What does this mean? The correction is EXACTLY the same as what I wrote.
Can someone explain? I’m fiding my payment subtracted for a lot of these issues and I think it’s absolutely unreasonable. Plus, every time I click on the :-1: to show that the correction is wrong I find that while my quality increases my money decreases.
I need explanations please, anyone in a similar condition? It makes me not work on the transcriptions anymore.