When you have applied for a budgeting loan, you are sent a letter telling you if you have been accepted and also offering you several amounts to borrow and also several rates of repaying the loan, this is called an acceptance letter.
The department send you a pre paid envelope for your reply, this is generally a 2nd class return envelope with the address of the Benefit Centre that is dealing with you application already printed on it.
However this does not mean that the office on the envelope is the office that will deal with your application. As the DWP have a policy of shifting work from overloaded offices to other processing centre that do not have too much work, that actually address that your application will go to may be different from the one on that sent out your letter.
As the offices that process specific post codes are decided and changed each week there is no way of telling who has your application, or where you should send it to in advance.
We have listed all of the benefit centres in the UK on the Benefit centre page, so that you can call for the latest address, however our advice would be to take your completed acceptance letter back to your local Jobcentre Plus office who will forward it on your behalf, as they will have the latest address details for your area, and will also put it internal post speeding up your application.