Netflix and wrong disc

Some time ago Shamus ran into a problem: Netflix sent him a wrong disc. The tale of horror reads in 3 parts [link 1, link 2, link 3]. After the third turnaround with them he was obviously getting peeved.

Today it's my turn to drink from this cup: they sent me J2 vol.4 in the slieve of J2 vol.3. This time they have a bit of an excuse: the volume number is in kanji (四). But it's a very tiny bit. I am sure the sorting monkey does not ever bother to read the numbers.

So, what to do? The only way to correct this is to hold onto v.4, order v.3 again, and hope for the best.