Divvia interview questions

Applied online, after the initial phone call I was given an assessment to be completed. After the assessment review, I was told that my work was satisfactory and asked to come in to meet the CEO/CTO. I arrived for an in-person interview and met with a guy who I believe must be the chief financial officer. He told me that he is happy to give me the job and offered me much much less than what was advertised and what they agreed on the initial phone call. Even though I clearly mentioned the salary that I'm expecting in the first call, they continued through the interview process, and in the end, after inviting to their office they negotiated unprofessionally. Don't waste your time interviewing here. This job was posted under "Unity Payments" but the Canadian POS corp, Unity payments, Taliup Express is all the same. Don't waste your time interviewing here.