ISBM — Bachelor of science Marks Card

HI team,
I took admission in ISBM Bangalore on 2019,
I attended the exams, i got two years marks cards but yet to receive final years.

I tried to contact them over the phone but couldn't get proper response.
I have been trying to contact from past 2, 3 months but no luck.

Later they given assurance as they will be providing the marks cards and requested me to revoke the complaint
After revoking again started the same, not answering the call, no response, after many requests also there is literally no response.

Who ever it may concern, I need help please.