Not only is it NOT for p&p (you have to include an sae) it is £1 admin fee for EACH certificate

"5 REMITTANCE ENCLOSED (POSTAL APPLICATIONS ONLY)
Please note: Salford charge the standard fee of £9.00, plus a £1.00 administration fee for each certificate ordered.
UK: applications should enclose an SAE. Postal order or cheque made payable to : City of Salford for £ 10.00"
Just wondering too, the only cert I ordered from Salford has been a death certificate which was newly handwritten copy, not a photocopy of the original one - most disappointing.