Once you have purchased a Contabo product you should be able to check the status of your order here.

All you need to do it open the link above and fill out the email address field and the order number field. For the email address field you should use the email address that you entered when completing your purchase. You should be sent the order ID by email after completing your purchase which you will need to use to fill the order ID field. 

You can find the full article on how to check the status of your order here.