Set up a Direct Debit for a duty deferment account on the Customs Declaration Service Find out how to set up a Direct Debit with your bank or building society if you’ve applied for a duty deferment account. From: Before you start You need to get access to the Customs Declaration Service and then set up a Direct Debit arrangement with your bank or building society, if you’ve already applied for a duty deferment account. If you’re using both the Customs Declaration Service and the Customs Handling of Import and Export Freight ( CHIEF) system, you will need to set up 2 separate Direct Debits – one for