This exceedingly spectacular species is named after famed broadcaster and naturalist Sir David Attenborough. Nepenthes attenboroughii is categorised under the IUCN Red List as Critically Endangered (CR), since from the time of its discovery in 2007, wild populations were found to be barely sustainable. Ex-situ conservation work, such as cultivation by growers such as yourself is likely to play a vital role in its long-term survival.
The selection of these is so limited that it's unlikely BE will be able to offer this plant again for several years.
This plant is a size small (2" leafspan) from BE.