> For the complete documentation index, see [llms.txt](https://apidocs.arionbanki.is/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://apidocs.arionbanki.is/b2b-2013-schema/b2b-services/b2b-unpaid-bills-service/functions.md).

# Functions

The unpaid bills service enables the user to retrieve an overview of unpaid bills and detailed information on a specific unpaid bill.

### Retrieve an overview of unpaid bills 

The function GetBills retrieves all unpaid bills of the logged-in user. Bills that have been marked as hidden will not be returned. 

### Retrieve details of a specific bill 

The function GetBillDetails retrieves detailed information on a specific bill. 

Retrieve hidden bills The function GetHiddenBills retrieves bills that have been marked as hidden. 

<mark style="color:red;">This function is not implemented.</mark>&#x20;

### Unhide a bill&#x20;

The function UnHideBill marks a specific hidden bill as unhidden.&#x20;

<mark style="color:red;">This function is not implemented</mark>&#x20;

### Cancel an optional payment claim&#x20;

The function CancelOptionalClaim cancels an optional payment claim.&#x20;

<mark style="color:red;">This function is not implemented.</mark>