I live in Qatar, and the Qataris are notorious for finding ways to avoid paying their bills, delaying payment for extremely long periods, or asking for unreasonable reductions. Claiming something is wrong or faulty is a common tactic, another one is to substantially expand the scope of a project, and then refuse to pay when the project inevitably runs over the original deadline.

Akbar Al Baker pulled similar cons with the construction of Doha airport, demanding the project be accelerated but refusing to pay for the extra work that would be involved. Bechtel and Lindner/ Depa Interiors are two companies that spring to mind. They also suffered due to the erratic and insanely inefficient bureaucracy that is endemic in Qatar - 60-70% of Qataris "Work" in government jobs.

Similar stories can be heard of tower construction in Qatar. Empty and unfinished towers littler the country due the Qataris failing to pay their dues to construction companies. This article superficially covers it: https://www.constructionweekonline.com/business/article-3775...