I have a student who bought a bass new from a well known bass maker about 2 months ago. About 3 or 4 inches below the right F hole there is a knot in the wood. Since getting the bass the wood knot has risen, so that the surface of the wood now has this bump in it. My student's mother called the company and explained the situation. Apparently they just gave her a vague answer (she doesn't know anything about instruments) and said something like "Oh, it's a canary in a coalmine".... Now, I don't know what that's supposed to mean, nor did she, so she asked me to get involved and speak to the company. I ask for some advice from others here who may have experience with something like this. Should the company fix the knot? Replace the bass? Refund some money? Should I be the one, as his teacher, to be asking them to do something about it? Thanks in advance.