PROPER Commercial Manager interview questions

Very disappointing process. 3 stages; - Screening - Online interview - Final interview with task and presentation involved Whole process took about 4 weeks. Never heard back after the final interview. After 2 weeks I asked the company for feedback and was told I’d hear back within “48-hours”. Another week later and I asked again to which I never received a response back. Shameful lack of considerarion given after the amount of effort put into the interview process. Would absolutely NOT recommend.