Popcorn ceiling elimination is quite common as of late. If there are enough complaints against the contractor and they do nothing about them the contractors board will take their license away. A development contract is likely one of the best methods to cope with dishonest contractors, but I want to offer you another thing to think about.
Some shady contractors will generate profits by taking on extra jobs than they can deal with. However, such contracts continue to be well-liked despite a history of failed or troubled tasks, though they have an inclination to work when prices are well-known prematurely.
If your state has a licensing board for contractors, this will likely be your next step. Manufacturing drawings and specifications are prepared by the designers and these should point out to the manufacturing team exactly what high quality is required and what uncooked supplies should be used.
Those shady operators …