If it were me, I denounced this matter on ES facebook, from Friday night to be there all weekend.
Although I like SM3's not like ES services, when I bought mines paid $45 express mail and ES sent me for a 10$ standard mail. Last week from another online French store they did the same thing. Only in French stores make this to my tons of web purchases.
Did Weston filters fits on SM3 V2 tube?
They fit fine. I believe these are identical to the ones that come stock in the SM3v2. However, Westone only sells them per individual filter. You can buy them elsewhere foe approximately $15 for 10. Just google Knowles Acoustic Filters.