You can send your message to manager of Grand Bazaar by submitting the below form.
The Grand Bazaar (Persian: Bāzār e Bozorg) is an old historical market in Tehran, the capital of Iran.
Located at the Arg Square in Southern Tehran, it is split into several corridors over 10 km in length, each specializing in different types of goods, and has several entrances, in which Sabze Meydan is the main entrance.
In addition to shops, the Grand Bazaar of Tehran has contained banks, mosques and guest houses.
The Bazaar has access to Tehran Metro through Khayam Metro Station.
For more, watch the movie on this link.