There are only a couple of companies that I won't flat out work for - Fujitsu is the most egregious of them. Remember the great Fujitsu hard drive debacles of the 2002 era? This was one reason and Horizons is another.
Fujitsu have lied on the stand, have colluded with the Post Office to insert false accounts into the system (they had update access to other peoples accounts and were falsley inserting records at the Post Offices behest) They have perjured on the stand, they have conspired (and succeeded!) in perverting the course of justice, and so far they have gotten away with it.
It is high time that people simply stopped working for them. Any recruiter that calls me wanting to offer a contract is told in no uncertain terms where to go. Refuse to deal with them. Don't consider them for tender. It's not worth your companies good name to contract with these people. They are cheap for a reason - and you can see this now.
Simply cut them off and punish them properly for their decades of failing in this regard. It's your moral duty to do so.