Lego has officially changed its policy for bulk sales. In the past Lego would ask about how the bricks would be used. If they didn’t like the intended use, then you wouldn’t be able to place a bulk order. Well all that is now over:
“As of January 1st, the LEGO Group no longer asks for the thematic purpose when selling large quantities of LEGO bricks for projects. Instead, the customers will be asked to make it clear – if they intend to display their LEGO creations in public – that the LEGO Group does not support or endorse the specific projects.”
Read about it here: http://www.lego.com/en-gb/aboutus/news-room/2016/january/adjusted-guidelines-for-bulk-sales