Have you managed to resolve this issue?
An attachment of earnings may be the way to go but there are other routes that you can use.
Do you have a garrantor on behalf of your debtor?
If you have lost contact with your debtor you could use a Debtor Trace agency.
The law states you can collect debts that go back 6 years as a company we believe that any longer than 3 years can cause difficulties in locating debtors but thats not to say it cant be done.
If you need any more advise then feel free to ask.
Regards
Gary Jones
Digital Financial Services
www.dfsdebt.com