400x should still be available today given the remaining stock. I'm in NZ, and when E100G was discontinued, they weren't aware of it, well they didn't have any in stock but could get them in, in the end I got it from Freestyle in the USA b/c they were asking for about $26US equiv for a single roll. They miss quoted me and after a full week told me they couldn't get it for me for the earlier price which might have been around $12US which was about the normal US price.
Checked - B/H have them in stock at $16US still ..... also 120 format.
I would have argued they have to give it at the price given, it's a law in the USA even if the price is wrong.