Devbridge Senior Product Manager interview questions

It was 3 stage interview process, with the last stage being 2 hours on-site test/interview. I received an offer but they told me that they will be able to offer 10k less than what I initially told them my desired range is. Also I was offered 'Manager' position instead of 'Senior Manager' role which I was being interviewed for. I asked to clarify how these roles differ but they didn't answer which made it clear that they want someone to do the same role but with less salary.