Guess "low volume" may be the official cause, though what would I know, but it sounds very plausible.
As for shipping advice, I have no REAL advice, I can only suggest that you maybe contact Servimex.
But let me be clear on this, I have never had any contact with them, nor have I done business with them.I don't know them, they are only in my opinion maybe the most professional company "again in my opinion" available here in PY.
I once recommended some other company I knew, and that turned into a total disaster, so what else can I say...
Good Luck.