Ok, then just file a defence saying there is no contract between New Co and Claimant.
There is no claim.
BUT - they would be entitled to interest on any late debt.
They would only be entitled to collection charge if it was included in any contract. Not included, then not payable.
For compensation its calculated (and fixed) under the Late Payment of Commerical Debts (Interest) act 1998\
Up to £999.99 - £40.00
£1,000.00 to £9,999.99 - £70.00
£10,000.00 or more - £100.00
So max £100.
Can I clarify anything for you about this today, please?
If not, I would appreciate a 5-star rating for my answer, by clicking the button at the top of the screen. I am not paid for my time unless you rate. If you need anything further I am available for a follow up at no extra cost.