Condition is inverted.

Positive balance on this account means, that mirror_section_uid "owns" money to
section_uid.

master/bt5/vifib_open_trade/SkinTemplateItem/portal_skins/vifib_open_trade/Delivery_isDestinationSectionAllowedToRequest.xml

@@ -60,7 +60,7 @@ balance = context.portal_simulation.getInventoryAssetPrice(\n
   simulation_state=simulation_state,\n
   section_uid=section_uid,\n
   mirror_section_uid=customer_uid)\n
-return balance >= 0.\n
+return balance <= 0.\n
 
 
 ]]></string> </value>

master/bt5/vifib_open_trade/bt/revision

-156
\ No newline at end of file
+157
\ No newline at end of file