StashFin — emi deduction

Sir i am balram ji verma i have to pay 3333 rupees emi per month of first. N company promised me that it will be deducted from my sbi account and i put all related formalities but they could not succeed in this regard. N now a late fee is rs. 250. So why they are unable to make it deduct from bank account. What is my fault after giving all required formalities. I am ready to pay with mobile app but could not understand how to register or pay it. Kindly help me on my mobile no. [protected] as early as posdible.
Thanking you for anticipation.