What is the ruling on working in the marketing of luxurious hotel rooms through a website, where an account is charged with a sum of money, then rooms are booked, and the website markets them using artificial intelligence, and the booking amount is refunded along with a commission upon confirmation of the booking by the customer, with varying commission percentages obtained based on the type of booking?

The aforementioned work is forbidden because it is a loan you pay to the website, which returns to you with a commission. This combines a loan and brokerage, which is forbidden in Islamic law, as the Messenger of Allah, peace and blessings be upon him, said: "It is not permissible to combine a loan and a sale." Every loan that brings a benefit is forbidden usury (riba). There is no difference in calling the amount a deposit or a pledge, and it is not permissible to categorize it as a lease. The apparent picture is a trick to conceal usury. Permissible marketing requires that the marketer not pay anything.