DIBS Payment Window for Joomla site

I want a dibs payment window solution on a joomla site. The site is not a shop. Example for want I want. A customer call us and will buy a product from us that he/she found. In the phone we now can help the customer with a unique order number for this transfer. He go to our site and write in this unique order number. After that comes a form with name and adress a.s.o and dibs payment. When the customer is finished and the transfer is ok,we get an email that the transfer is ok, and all the info that the customer filld in the form. If you have more ideas to do this very nice, it is very welcome.