The policy for "vintage" instruments is 2 days.
I bought the bass and set it up, but there was something funky with the LPF. There was a constant buzz and my guitar tech couldn't find the ground issue. He confirmed that someone(other than Alembic) was in there and resoldered. It was missing the ferrite bead. I bought one from my local electronics supply store, but no luck.
I didn't want to invest more money than I need to make the bass a reasonable purchase. Given the 2 day return gave me less time to diagnose, that is what I did. Returned.