HCLTech Senior Software Engineer interview questions

Interview Process takes 4 week. HCL directly called me. First day they take only Written test after that They told me you cleared written test and wait for sometime. After 1 hr they told me they will call me next week for F2F interview and for now you can go. I said ok. After that they schedules twice my telephonic round but at the schedules time nobody called me. After 3 or 4 week they called me again and call me for F2F. I cleared all the round and fill up the employment forum and negotiate for the salary with HR. After that they told me they will call next week for the final offer. But even after 2 months I did not get any call and message from the HR. When I try to contact them, they always reply like wait for 2 days or will call you asap. I am frustrate now. I left the hope of getting call from HR.