Is it permissible for an employee to participate in a telephone survey regarding banking transactions?

If the study does not aid usurious banks in their forbidden work, then there is no impediment to conducting it. However, if the study assists usurers in their sin, then it is not permissible, based on Muslim's narration from Jabir that the Messenger of Allah, peace and blessings be upon him, "cursed the one who consumes usury, its giver, its scribe, and its two witnesses," and he said, "they are all equal." This indicates the prohibition of assisting in falsehood.