Ps. Decent chance your plant is 3n which will make it an awesome plant to grow but not a good breeder. Worth digging inro before you try, it might save you some effort. Plus, its just so interesting! Sorry to presume if you already knew all that!
I'll have to message Satomi from Seed Engei, as she did mention in the ebay listing it was a polyploid. Didn't specify 3n or 4n, though.