McREL interview questions

Had two successful interviews and was at my last stage interview where I presented a ppt when they forced me to sign a document that they said was for a credit check that required my full DOB, which is illegal. They would not conduct the final interview until they had it. They had sent me all the information about their benefit packages prior to the interview which I thought was a good sign. After they received the document which revealed my age their attitude changed entirely. The interview was over zoom and the first thing they said during when we all signed on was that they couldn’t spend the allotted time for the interview because they were busy. This was before the interview ever started. I could tell that they had already changed their mind on hiring me.