Yup mericlones are a big no-no, but it's quite likely it's happened nonetheless taking into consideration the potential sums of profit to be had. Greed is a powerful motivator.
I've been otherwise preoccupied (Raku course for one) and forgot to post the update. This plant struggled with the flowers a bit, hot weather meant I had to put the plants outside as the conservatory gets over-heated, and some of the buds were set on by aphids ... two of these buds turned brown and blasted. Anyway here is the pic ... I hope it does better next year and that this is not a genetic weakness. The plant seems to be growing vigorously.