England and Wales Correspondence and Payment Processing Information
Correspondence: State agencies should send all child support case correspondence to the Reciprocal Enforcement of Maintenance Orders (REMO) Unit:
Official Solicitor and Public Trustee (new address as of August 25, 2013)
Fax: 020 7061-6194
Payments: State agencies should send child support payments according to the instructions in the order. Typically, this is directly to the custodial parent, but in some cases it will be to the initiating court. Please note that the U.K.’s REMO unit for England and Wales does not distribute money. If you cannot send the money directly to the custodial parent, send it to the initiating court with the custodial parent’s name included.
Source: REMO Website, A Caseworker’s Guide to Processing Cases with the U.K. (page 4)