I'm sorry, I see how that can be misinterpreted. I buy them online from different companies and start them for my own garden. It seems to be cheaper this way since I have to start semi-tropical plants like these vines every year for my zone.
I recently got Pink Coral Vine seeds from a vendor who is also a member here--Onalee. I can give you some other good names of seed companies if you like, or the Garden Watchdog is a great place to check as well. If you click on the photographs in my article it will take you to their link in Plant Files which in turn have a link that says "4 vendors have this for sale" (for example) and you can click on that and find the vendors. Hope this helps!
MESSAGE TO ARTS_N_GARDEN
TKS FOR THE INFO, THEY ARE SO BEAUTIFUL, I WILL TRY TO FIND SOME OF THOSE SPECIAL SEEDS ONLINE OR THRU TRADE...I ALREADY HAVE THE MANDEVILLA AND PASSION FLOWER, PEOPLE ARE SO AMAZED BY THESE ONES, CAN U IMAGINE ONE OF THOSE OTHER BEAUTIES IN MY GARDEN. I'M IN THE MONTREAL, QC AREA.