I had some fun looking for Mortgage Trust Limited so I thought the method used might be useful for others trying to find info on the .
Do you know what the crafty sods did ???  The main Company address from the website is Solihull and if you look for this on BT it gives nothing. Search the web and you get a bit more; notice the fax area code is Epsom. Search for them in Epsom and bingo !! 

Google search	...	BT search
Mortgage Trust Limited	...	Mortgage Trust Ltd
St Catherine's Court	...	Sir William Atkin House
Herbert Road, Solihull	...	Ashley Avenue, Epsom
West Midlands.  B91 3QE	...	KT18 5AD
Switchboard: 0870 4112323	...	Telephone: 01372 737600
Company Fax: 01372 737777	...	<--  bit of a clue

Then look at the other numbers on the BT search, and it lists the company with the same address but a different postcode (KT18 5AS) - the Phone: 0870 4112323 and Fax: 0870 4112487  8)