Relieving letter and experience certificate not issued by my current employer

Hi sir, I stay in mumbai. my current employer from Hyderabad has asked me report to office in a week. I stay with my mom and asked them 15 days time to get relocated to Hyderabad because company has not done any arrangements of accommodation and has to do by myself and for this reason I asked them one week more. But they refused and blocked my login portal and initiated exit from the employee portal and deactivated all of my login credentials. I called HR and they were saying we issued no call no show as I didn't reported to office in a week time. But I have all my call and writing proofs that I requested them one week more and they told me they will let me know but in mean time they terminated me. They sent me final call letter in which it's mentioned if I didn't reported they will immediately relieve me or 60 days notice period, but now they terminated me without any notice. Now, I am asking them to atleast give me my relieving and experience letter along with payment of additional days I worked, but the HR is refusing and saying they won't provide. I don't want to work for this organization, I am searching new job and this document are required. Need your help, please show me the way on how to proceed further