OP sent their offer before asking about the weight. Pretty sure Reverb states that sending an offer represents an agreement to purchase the instrument as-listed if the offer is accepted.
That's what the OP did incorrectly.
Personally, the only transaction of mine that would get hung up over a 2-pound differential would be if I ordered a quarter-pounder with cheese from McDonald's, but that is neither here nor there.
If I ordered a quarter pounder with cheese and it was two and a quarter pounds I'd be pretty happy...
And I've broken 7 bones in my spine... an 11 pound bass is not a significant burden.
