Been told different answers, in locating purchasing part

Hello I am Azucena Bruzon.

The air intake manifold the part that connected to the air filter) at first I read there was a recall, took car to Nissan, was told yes waited when car was returned part wasn't replace the tube before it, which there wasn't any damaged. So next try part stores said its a dealer item. Nissan charging $307.00 just for part when it's a $70.00 piece. Any suggestions?