I see, but then my question stays..
Since you consider yourself to be a pro and i remember you mentioning one time that nowadays you only want to work with other pro's too..:
Then why on earth would you like to be in a crap band like this..?
I can imagine playing with such a band 1 evening when getting a call and not knowing what to expect, but i can not imagine getting very enthousiastic when they would call the next week to ask to become a steady band member..
This is not looking (and definitely not sounding) to me like a monitor-problem or another problem that can be solved within a few rehearsals (and to be honest also not within a lot of rehearsals)..
Like has been said before, to just take the money and run would have been a better scenario in this case..