No harm could come from asking, right?

There was a webcomic called "Dominic Deegan: Oracle for Hire" that ran for nine years and ended earlier this year.

Although I followed it loyally for quite some time, I had to lose my internet for a few years due to money problems and missed quite a bit of it. Although I am now once again reading it, I saw that the author published the comic as a couple of books over the years and you could buy them.

I tried e-mailing the author but I have yet to get a response, so I thought I'd ask around in the meantime:
Does anyone know where I can still buy these books? I'm not quite entirely sure how many books the comic was split into, but the shop on the comic's site doesn't seem to have them all available.

Since I live in the butt of the world, it'd be great if I could buy them online and import them!

If anyone could help me with this, I'd be really grateful!