Wait!
Your domain is :
https://100bit.co.in/User examplens's domain is
https://preev.net/Both have same interface but different logo, different site title and additionally you have the Twitter linked to you. Who is copying whom ? LOL
I am guessing there are ready made themes already exists for this type of sites and you both got them from the marketplace?
The one who was actually the first is
https://btc2fiat.meAnd since it is free (as also stated in
the actual announcement topic) people started using it on whatever domain names they had available.