Can Back Market legally hold this deposit? Support Back Market 17 April 2020 10:08 Updated Our latest Terms and Conditions, which went into effect in August 2019, outline this process. Please refer to Section 6.13. Related articles I don't sell in the back market anymore, why don't you pay me what I owe you? Why is Back Market taking a deposit? What is my virtual wallet and where can I see the balance? How soon can I get my money back? What is a negative bill?