1. Dear Roman, you should formally write back to the UK debt collection company MKDP Ltd and firstly state that there was a novation of the debt agreed with Barclays and that the monies are no longer owed and have not been owed since 2010. secondly, you should include in the letter a further statement to the effect that any monies due and owing are not Statute Barred under the Limitation Act 1980 owing to the lapse of time.
2. Basically what has happened here, is that this company MDKP Ltd has purchased and debt on the basis it is still owing. However, the money they paid for that debt was wrongly paid as the debt is no longer owing. So, you should make the debt collection company aware that someone sold them a bogus debt and get them to take it up with whoever sold them the debt.
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