My payment system is not listed.  What to do?

You can always offer us to add a payment system in the command window for creating an advertisement when choosing the exchange direction (on the last page of the dialogue list).  If the payment system does not violate the Terms and Conditions of the service, then after a quick moderation your ad will be approved, and the new payment system will appear in the dialog box for future announcements.  Re-moderation for new ads in this payment system is not required.