Amazon rescinding the offer while I am on the notice period

A few days ago, just before the Christmas, Amazon HR called me to inform that my offer is rescinded. The start date was Jan 2, 2023. As a gift, they will pay me a months salary. I already resigned from my current post after obtaining the work visa for the new location on November 30th. I asked their affirmation before resigning. Right now, I cannot relocate and my current visa became void since I resigned. I also cancelled my rent agreement. In a month, I will be on streets, without a job and visa. In every step I tried to behave ethically and high trust. Guess I did wrong. Are all places like this? Ps: sorry, I forgot to add. the new location was Canada. My current location is in EU. Ps2: some background about me: Amazon offer was for Sde2. I have 5 yoe. I have worked in several projects spanning from embedded software for airplanes to scalable cloud based data heavy backend applications. Java/C++98 were the primary stack. I had turned down an offer from Meta to join Amazon. I th