B. In the case of a stop notice or bonded stop notice filed by the original contractor or by a subcontractor, the original contractor or subcontractor is only entitled to recover on its own stop notice or bonded stop notice the net amount due the original contractor or subcontractor after deducting both of the following:

1. 1. The stop notice claims of all subcontractors or material suppliers who have filed bonded stop notices for work done on behalf of the original contractor or subcontractor.
2. 2. The amount of any payment already received as described in the stop notice or bonded stop notice.