You can view your completed licenses, as well as pending requests, in your account.
To do this, go to Offers in your account and then My Permission Offers. In the overview that opens, you will find all open and approved requests, which you can easily filter by publisher, title, status, etc. (more explanations of the different meanings of the statuses can be found here). Clicking on the View button of the license you are looking for opens an overview page with the order details and license terms.
To download them as PDF, click on Download contract.
At the same place you can download the corresponding invoice for orders that have not yet been paid (click on Payment by invoice) or pay them conveniently online by clicking on Payment by credit card.