For the purposes of this Part, residential building work to which a residential building work contract relates has not been satisfactorily completed if (a) the work has not been completed or is deficient; or(b) the work has not been completed to the standard, or using the materials, required under the contract; or(c) any statutory warranties that apply in relation to the work have been breached; or(d) any requirements under another Act that apply in relation to the work have not been complied with; or(e) the work has caused, or resulted in, damage to any building, structure or residential building work.