Putting it simply my DH was made redundant and the account number quoted for the payment was slightly incorrect so the Insolvency Service paid the money, it was held in the bank's holding account and then when we didn't claim it in time (as we were not aware that it was in a holding account) it was returned to the Insolvency Service.
Bank know date it was returned, account number and sort code, Insolvency service have done a BACS trace and say 'no it's not here, it's now an issue between you and your bank'.
WTF am I supposed to do now?