United Bank Of India [UBI] — doubt regarding pension credited.

At the time of retirement i, rama mahato have pension account in ubi, ichapur branch, got promoted n my basic pension has increased as per railway letter. Inspire of my revision of pension only rs.191.00 has increase in my gross pension compared to the month without revision of pension. Inspite of an appointment with branch manager of ichapur, he is never available to resolve the issue. He never accepts complain letter & asks to come other day. I am a retired employee of railway and pension is the only source of my livelihood & physically and mentally i am unable to cope up with the stress created by the manager. My query is plz provide me with the calculation sheet of my arrear, time period of arrear and calculation of my present pension including any relief if applicable arisen due to revision of pension due to promotion. Plz help.