Neominds Software UI Engineer interview questions

First round was about the basics of JavaScript, It was a telephonic Interview Second round was a video Interview where I was asked to create an simple UI using chart.js After the 2 technical rounds, I was made to negotiate my notice period in my previous organization with a assurance that I would be paid well But they came up with a pay lesser than the one I was holding . When I tried to discuss , they didn't have the courtesy to apologize and simply trying to give silly justification for their actions. I am really disappointed with the response I received from this organization in spite of making so many adjustments to join them.