Unsubscribing from their mailing list is the answer to the question in the title.
Like the male panda I have tried and tried to achieve a successful liasion with Panda although in my case it was probably the very opposite of what the male panda was trying to achieve.
Telling them to f*** off appears to be impossible. I've clicked a multitude of times on the unsubscribe link but this is obviously a complete waste of time.
The Panda needs to understand that no means no as the female panda seems to have successfully conveyed to the male of the species.
Even if it does mean extinction.