What did they write to you? Probably poor graphics and text alignment.
Envato inform me this message
Thank you for your submission. We have completed our review of “Graphic Designer’s Business Card_01” and unfortunately we found it isn’t at the quality standard required to move forward, and you won’t be able to re-submit this item again.
We appreciate the effort and time you’ve put into creating your item. And we’d be happy to help make sure your next entry will meet our submission requirements. Here’s our advice:
Visit our forums and ask fellow authors for feedback. Our helpful community will be glad to lend a hand.
Check out this Help Centre article to understand why and how items get rejected.
Remember you can get help, in the form of tutorials or skilled professionals, on Envato Tuts+ and Envato Studio.
We hope to see a new submission from you soon!
All the best!
Envato Quality team
Yes it is what they wrote to me as well. Try a more complex graphics. Align the texts well. Do not make minimal graphics (they are the hardest).