The company I sell for supplies floor and roof trusses to builders in South Florida. (2 progress payments) We shipped floor trusses to Buildings 4 and 5. We received payment and issued partial waivers for those specific amounts. In the next pay cycle we shipped building 5 roof trusses but not Building 4. The builder is holding our check for Building 5 until the receives a partial waiver on Building 4 for zero dollars reflecting a through date of the check date.