That is why I am sooooo careful about identifying mine because I sell on Etsy and eBay and I have 100% positive feedback out of 218. I only sell when I have extra's but I guarantee all my plants.
There are a few buyers I stay away from. I am also into streptocarpus and they are so beautiful. I am only learning about them. My Christmas/Holiday cactus are what I have the most. I have many of those and this year I started to sell the cuttings instead of the plants. It is easier, the customer gets more for their money and the shipping is cheaper.