Silicon Stack Software Developer interview questions

I received a call from HR regarding an interview opportunity. However, the interviewing team exhibited highly unprofessional and rude behavior. Despite this, I received an email from HR confirming my selection and requesting my documents. Several days later, HR contacted me to inform me that the position had been closed, and they were rescinding my offer after I had already resigned from my current company. I feel frustrated and disappointed by the lack of professionalism displayed by this company. My advice to others would be to avoid interviewing with them altogether