Enough to find out who is who. Write a petition. Even if it is, it will consist of only one sentence:

Please note our interest, since we believe that these royalty rates do not cover our costs of production and does not bring profit

Hello everybody!

Stocker from Russia are very unhappy IStock policy.

Many agree to sign the petition. If you give a link to the public the text of the petition, that a lot of participants to sign.

However, many doubt the success of the struggle for their rights against a huge corporation.

Outputs are two: either sell it for 2 cents, or delete a portfolio and go to other sellers.