I have just added an option to order the paper version of the addendum for anyone who hasn't already got theirs.
Obviously its free, as is the shipping. Just select it from the products page, and when you go through to checkout, you will not be charged.
I would never expect anyone to pay for an addendum!
And if you would like a pdf version instead (or even as well as), then please message me and I'll send it to you asap.