So the bill might look something like... Bear with me, I've never written a bill for anything... :p
EAMONN O BRIEN
NO.2 BIG ROAD
BIG TOWN
NO. 1
19/4/2013
A valuable, financial instrument was deposited on (date of mortgage) to the value of £100,000, reference no. 12345.
Full payment has been made as per contract. I am now seeking to recover the above mentioned instrument.
Amount due : £100,000
Payment is due within 30 days upon receipt of this bill.
Signed __________________
Printed copy · Anthology Volume 4, page 560Printed copy from The Tender For Law Anthology, Volume 4, page 560 (printed 13 June 2014). Added by this site; not part of the Facebook export.