Please, could you send us an invoice for the order of the Webvati Software Video MakerFX - invoice No. 1491208171 to M.Hahn@licom-alphacam.com? Many thanks and best regards.
Try creating a ticket on the official website of the developers, because they're the only ones that have access to the payment details and purchasing details.
Here is the website: http://support.videomakerfx.com/support/home
If they refuse to do that, contact your bank and ask for a chargeback, but get in touch with the developers first.