Did you ask if there was a mistake?
I emailed info@moreflavor . . . . told them much the same as I've written here.
I also sent an email to the first person I contacted (they had been super polite in their written language when answering my earlier question) ~ I asked this person if it was a mistake (?) am yet to get a reply - I don't expect one.
How hard can it be to drop some gaskets into an envelope with a stamp?
If they find a way to send the gaskets for a reasonable price I'll be sure to post that info here.
It's been a while since I bought a DVD on Amazon but I sure don't remember being charged anything like what moreflavor.com is asking.