OpenCart Community

I have OpenCart Version 3.0.3.6 and have an account as an amazon affiliate. I am switching from wordpress to opencart and need to know if anyone else has done this.
I see plugins from a company called webkul but I have never heard of them. Has anyone used their plugins? Hints, ideas, even a kick in the pants would help.
Is there any other company that has made plugins for importing products from amazon and getting payments from amazon for those purchases? Please let me know. Thank you.

I did use RMA module for one of my old website and it works well. There support is also friendly and efficient, would suggest you can give it shot.