deductions for rent arrears

What is the address for third party deduction for rent arrears requests - aware that post seems to be getting ‘sorted’ and can’t find any reference to where we should be sending requests to. Only advice was for claimants to request deductions via JCP.

Third Party Deductions are dealt with by a team at the local processing centre so here in Suffolk it is Bury St Edmunds. The address here is either Norwich or Wolverhampton.
Luckily we have a contact for our local team and can speak to them direct.
Unless the claimant lives in a hostel they will not take rent deduction requests from the claimant, it has to come from the landlord (this is in our area).
Somewhere on line there is a document about how things are done.