LanceSoft Designer interview questions

Received a call from a man with a heavy Indian accent. I could barely understand him, and I mean that in a respectable manner. I had to keep asking him to repeat himself because I could not for the life of me understand what he was saying. He asked me if I was interested in a position and wanted to submit my application. Everything was fine until he asked for my lats 4 digits of SSN. Absolutely not. I asked why and his explanation was so it can confirm my identity. I had already given my DOB and month. I stopped right there and told him I was no longer interested. After reading the company reviews and its suspicious overly-positive score, I'm convinced that this staffing company is very shady and plugging in fake positive reviews. A quick reddit search came up with multiple threads of negative experiences warning to stay away. I agree. Stay away from this staffing agency, if they are an actual staffing agency to being with.