as for the recorded call, nowt will happen but it sounds as though the original company you owed cash to have now took on this debt recovery firm to get the cash back for them, for which the recovery firm will charge a percentage of the debt for recovery plus admin, i`m sure this is payable by the original company you owe to, and not by yourself, two lads i work as a doorman with run debt recovery companies, so any other info you need let me know and i will find out as much info on what you can do.
btw if you pay just 2 quid a week off your debt they cant touch you with bailiffs etc.