Is $2,000 to replace siding and add flashing on dormers a fair price?

This quote option was for replacing siding and adding flashing on dormers. The contractor initially stated that flashing was needed. However, during the project, the contractor found existing flashing and informed the homeowner that the work was not necessary and therefore not performed. Despite the work not being completed, the contractor is refusing to refund the $2,000 for this line item, claiming the total price for the roof job was fair. - Scope: Replace siding and add flashing on dormers- Initial Assessment: Contractor stated flashing was needed- Actual Work: No siding was replaced, and no flashing was added as existing flashing was found- Status: Work was not performed- Dispute: Contractor is refusing to refund the $2,000 for the unperformed work