Currently, ANKO can be traded and transferred on two blockchains: Ethereum and Polygon. There are many holders with ANKO in Polygon, but many do not actually have Polygon. To buy or sell ANKO, you need to have a polygon to pay as a commission. It is good to buy ANKO, but the purpose of giving you polygons for commission purposes is to give you the experience of selling your ANKO first. (You are free to buy or sell ANKO with the polygons you received)