So, a band (let's call them band A in this case) is organising a gig and supports for said gig. Band A offers to provide backline. When questioned by another band (Band B) as to whether or not amps are required, the response is no, only that the drummer bring their own snare, cymbals and additional hardware to taste not on the kit provided. Based on this, Band B rocks up to the gig on the night with the required drum gear and no amps. Band A then turns around and says that Band B can't use their amps and that Band B should have bought their own to the gig. This is a hypothetical situation that may or may not be based on true events. However, I'm pretty sure that in this case, Band A is well and truely in the wrong. Has anyone on here been caught in a similar scenario?