The address of Budget Insurance Services is

PEGASUS HOUSE SOUTHGATE PARK
BAKEWELL ROAD
ORTON SOUTHGATE
PETERBOROUGH
CAMBRIDGESHIRE
PE2 6YS

Their geographic number is:
01733 845 000

When you ring this number they answer as Budget and there are 3 options. The first two are for sales and quotations respectively, the  third is for Budget policy holders which takes you through to customer services. Whether they are willing to deal with claims you'll have to see.  Please report back

Success!
I spoke to a lady in India and asked if she could help me with a query regarding Motor Legal Protection, she replied that she couldn't  and that I would need to call the 0870 number quoted. I said I didn't want an 0870 number (politely!) and she gave me this one for new claims:

0191 350 3000
I have been trying this number but all the agents are busy so will have to keep trying to get through. it is the right number though.
Many thanks Lompos, am very grateful to you all who help out in this Forum.

Budget Insurance - possibly the worst company I've dealt with. Anyway - phoned the 0800 number and they point blank refused to transfer me to the right department - said they couldn't do it. This company sell insurance and then automatically renew your policy the following year. The only way to cancel is to phone an 0870 number. No faxes, no email. I could go on but I'm boring myself.... Avoid