I am getting letters from this company in my name though presumably for the tenant who put everything in my name.  Given number is 0870 600 7070.  Google doesn't know them by NDR or the full name.  The statements don't say who the debt was incurred with.  I've sent a copy of the tenancy agreement but the statements still come.
Any suggestions for another number for 0870 600 7070?

NDR are connected with Litlewoods Finance who have a geographic number in the database.

If you ring 0151 210 5000 and ask to be transferred to NDR they will do so (at least they did for me). When NDR answer they will ask for an account number, so have that ready.

When you speak with the switchboard try to ask what NDR's extension number is because if you find that information one can quite probably ring NDR directly.

The company is registered at the following address but this is not necessaril where they operate from

FIRST FLOOR
SKYWAYS HOUSE
SPEKE ROAD
SPEKE
LIVERPOOL
L70 1AB

Their postal address is:

P O Box 55
Liverpool L69 2 UN

According to my records there are 2 companies that go under the initials NDR Ltd.

If as lompos suggest, the original was with Littlewoods then his information is correct. Nationwide Debt recovery (NDR)

I also believe that there is also a company called Network Debt Recovery (NDR) who are currently undergoing criminal investigation.

For further information click on NDR  Link

Quote:

According to my records there are 2 companies that go under the initials NDR Ltd.

that's right, there are 2 companies whose names can be abbreviated to NDR,  but the original enquiry for a geographiocal number for NATIONWIDE DEBT RECOVERY whose premium rate number is 0870 600 7070 and who can be reached via  0151 210 5000