I see that Tech Dirt have picked it up.
They have so completely understood the issues I am having which helps so much.
I have sent a counter-notice but no response so far.
Their DMCA is not valid anyway because they haven't supplied a contact name and address which I understand you must do.
Nevertheless, because of this, we have had to move from a US host to a UK host and I had to work over Christmas to achieve this. The reason is that a US host will just disable pages until a counter-notice is received and then they will allow the complaining party 10-14 days to file a law suit.
If they don't file, then the website will be reinstated - however it will still have been down for 10-14 days and because of this, I had to move the site.
This cost me 3 days of time and considerable expense.
Abuse of this system is rife and there are plenty of ways to recover damages - I understand the penalty can be as much as $100,000.