I finally got an answer, I quote:
"We only provide detailed feedback when an item has crossed a certain threshold in terms of quality.
Both the design and code of this item is below the required standard hence why no specific feedback has been provided.
Continually resubmitting hard rejected items will result in your upload rights being revoked."
That’s interesting, who gets to decide if a design or a code is good enough or not? If code is working, error free and clean coded, just because a specific reviewer doesn’t like it it means it does have to reject it or nobody else is going to like the product? About design, I see products with poor quality or really basic design available on CodeCanyon, even so, anyone who likes the script itself but doesn’t like the design, it can customise it or change it as desired.
Ok, I do understand when there are errors, when there is missing documentation, when there is lack of features and so on, but to reject an item because someone (a reviewer) doesn’t like the design or the code itself is completely unproffesional. Just because someone doesn’t like a code, doesn’t mean nobody will.
I did remembered why I did stopped working with CodeCanyon, good luck everybody and thank you!