Hello,
I was wondering if someone can help me with something, sorry for my English in advance !

In my home town, I saw my photo in front of large supermarket, printed in large format, something about 5x5m. Anyway, I know for sure that that photo was downloaded 4 times from shutterstock and 2 times from fotolia, for the lowest licence. So i earned 6x0.25$.
Does anybody knows is that legal, that they can use my image, printed in such large format, and use it in front of their super market, and no one mention my name ?

Thank you in advance !
Best regards !