You need to create a new cascade for Vendo in your NATS, set weight to Autocascade and configure the Geos following these instructions
http://tmmwiki.com/index.php/NATS4_Geo-Targeting_Cascades
For any further help they will need to reach TMM.
Please use the comments section below to ask any additional information.
You can also contact us at clientservices@vendoservices.com