Tech Mahindra Customer Service interview questions

Found my resume online and received call and text. Setup for interview but the whole process was really unprofessional. No proper interview process and told me I got the job but did not hear back from them.

I had no issue with the Interview process....It went as usual just like other companies....There were 4 rounds; one was Ops....Test was towards the end before documents submission.... In brief, Telelephonic round, Versant round, Ops round...Then the tests towards the end...I had given a round for 2 posts one was for Retentions which I was not selected.... Hence, was put for Customer Service....My main concern is that my documents were submitted without giving letter of intent....