there are only three govt-backed schemes: DPS, TDS, and MyDeposits. You can search all three with tenancy details and deposit value. Have you done that to find out where it is?
It’s not in My Deposits. As mentioned, it clearly states on Open Rent that it’s protected with DPS, so I would have thought they would update it if something has changed.
Is there anyway to contact Open Rent directly about this, as DPS are saying they have no record of it?