Baclaycard debt sold to debt collection company?

Hi jonnyi was owing barclaycard about £3900 12 years ago. since woolwich plc was purchased by barclays ny details have now been passed to barclays. barclays has now sold my debt to a company called red debt collection company.should enter into agreement with red to pay this debt. your advice is need. plz let me knowregards
Answer
If you have not been making payments towards this debt or been contacted by anyone about this debt for more that six years, then it is dead and not recoverable by someone.