I get that, but 'unsanctioned overtime' sounds as if the company was robbed of something. Since they never paid for that 'overtime', how did it need to be sanct

I get that, but 'unsanctioned overtime' sounds as if the company was robbed of something. Since they never paid for that 'overtime', how did it need to be sanctioned? Going that route, maybe the company could pay for the work done on the project.