That has been claimed over and over and it’s not true. The Central Bank of Iraq accounts for all currency bought back in the figures they report. You can claim it’s all a lie, but they do report the munbers.
a - Currency outside banks, i.e., the currency component of the money supply as shown in the Analytical Balance sheet (Item 8) which is derived from the following sources (currency put into circulation reported by Issuing Dept. less vault cash(item 8.1 of Analytical Balance Sheet) reported by Research & Statistics Dept.). From December 2003, currency in circulation is the new currency issued by the CBI less redemption of old and damaged new currency notes. Prior to October 2003, currency in circulation is all Iraqi Dinar (other than the 25 swiss Dinar notes) issued by the CBI (both Swiss and Saddam Dinar at face value) less redemption of old and damaged notes and issued currency in vaults of CBI.