Business ProfileforSound by Design, Inc

On November 06, 2023, ***** ********* from Sound By Design sent me an email with a PDF of a proposal for a project that Sound By Design was going to do at my house on November 20th. In the proposal, it estimated that the job would take 3.6 hours to complete and the total cost would be $584. I paid $292 as a deposit so that they could do the job and once the job is complete they would send me the final invoice. In the proposal, it said if the job required extra parts, or if it took longer than expected, then the final amount would be more. As luck would have it, the job only took 1 hour and 10 minutes to complete and there weren't any additional parts needed to complete the job. To my surprise several weeks later I got my final invoice and the amount due was the same. $584. I was confused. Why am I paying the full price when the hours of labor were less (an hour and ten minutes, not 3.6 hours)? When I brought up my concern to *****, he said they charged me double since they sent two technicians to do the job. That was never stated in the proposal (they would charge double for two technicians). In addition, he said the charge per hour for labor was $132. That was never included in the proposal either. I objected to this and told him that I wasn’t going to pay him full price for a job that took an hour to complete just because you quoted 3.6 hours. That doesn’t make sense to me. In addition, I told him that wasn't fair that you're charging me double since you sent two technicians when that was never explained to me in the first place. In conclusion, ***** from Sound By Design was very misleading, and his sales practice was unethical and just down right wrong.