Notice period problem with HR

I was working in a worst service based company where I was given totally unproductive excel kind of work where I am having much work but nothing to learn. I am 2024 graduate now I got an offer from amazon as SDE 1 but my previous company notice period is 3 months but time given by amazon is 2 months to join. But when I asked my hr she is lagging the conformation for early release in 2 months what should I do now? I dont even have any dependencies in my company