best number to remember is 999.
Harassment for financial gain is a crime.
Tell the bailiffs you are in dispute with the company over this debt and any further contact by the bailiff will be considered harassment, and you will involve the police.
If you have a local radio consumer show (like 3 counties radio (Beds, Herts,Bucks) then get them involved.
In theory, theory and practice are identical.....in practice they aren't!