Please help me with this:

I am unable to cancel my z5 subscription - maybe my fault but I think a fault of mycommerce...

The technical support email which is given to me by mycommerce on the receipt (support@3dgamestudio.net) nicely answers that I need to buy a support ticket.

Please close the subscription as the service is discontinued and it would be also nice to send my last payment back. (issued today, number 483518475)

Thank you very much in advance!