VK Jehannum has a bad habit of mixing up his personal UPG with fact so what he says should be taken with a heavy dose of salt. Also, VK’s sigil is one he made up and is not the traditional one most people use. Claunek was first mentioned in the Key of Solomon as “Claunth” but is more widely known from the Grimorium Verum and that’s where you will find his sigil.
He is a “day demon,” meaning traditionally he should be summoned during the day, in the hour of Mars or Mercury, and his elements are Fire and Water, but these are only guidelines and following them is not strictly mandatory. In the BALG Wealth Magick book, for example, EA Koetting doesn’t mention a particular day or planetary correspondence for Claunek at all.
One thing most magicians do agree on, however, is that Claunek requires you to be specific in your goal, and that you will be required to do your part. He will bring opportunities but you must take them or they will disappear. He will not do the heavy lifting for you or give wealth for nothing.
I am just still learning about him before i contact him,currently im working with president beur only because i have a terrible flue and infection so when i get better i will contact King Clauneck..
I have not worked with him him very much but I have the book "Clauneck Money Magic” by Amara Yasmine that I personally quite like after reading it. It presents Clauneck with some rituals to contact him that makes sense.