Can you elaborate? I don't know any way to take a hashed password and get the plaintext version. When you log into any app i've worked on, we hash the pw you send and match it with the one in the db. This is why you have to get a password reset most of the time, because the company literally does not know your password.
A cryptographic hash is one-directional (among other things).
However, encryption is the the same as hashing, and it can be decrypted. It is possible that they are not hashing your password, but encrypting it, before they put it into the database.