SBM — Regarding issue of another person's Internet banking

Address:

Shimoga, Karnataka

Sir, my account No.[protected]. I had given requisite for internet banking for four times. At last in my SBM branch office they have issued the internet banking kit. But, when I operated it, I got to know that it belongs to another person's account. So immediately I have informed them about it. Still they are saying that they are not responsible for it. and they have not cancelled that also. And not issued different internet banking kit also. How can someone operate the different person's account. Please consider my request and do the needful.
Thanking you.