Ha ha, you live and learn. No more purchasing Durian from ebay then.
I actually already have a Bangkok Lemon Jackfruit (grafted) bought from Excalibur, and just put it in the ground last weekend. Don't know what to do with this mystery jackfruit. I will just keep it in the pot and if I feel like it, just put it in ground where I saved the space for potential Durian.