What action should I take against SBI?

Respected Sir, In the month of January 2017 I have taken car loan from SBI. The bank found me suitable and sanctioned me loan and said me that my EMI will be started to deduct from 5th March 2017. But even after 2 months bank didn't deduct my EMI from my account. Then I visited at the bank and informed the loan officer verbally. The officer assured me that I no need to be worried and said that bank will automatically start to deduct my EMI from my SBI salary account. Then after I didn't concentrate about my EMI deduction further. But in year of 2019 I suddenly received a letter from SBI where it was mentioned that the SBI has deducted my EMI from other customer account for last 2 years I.e. 2017 and 2018 and started to deduct EMI from my salary account from 2019. Now, bank is giving blaim on me though I was informed them at the very beginning. Now, bank is giving pressure on me that within a month I have to clear those 2 years EMI amount at a time otherwise they will take action against me. Hence, I must say one more thing that after getting letter from SBI, I visited with the manager. But he said that it's my fault not their fault and when I said that they can deduct those 2 yrs EMI by extending my loan period as they missed it, then the manager threatened me that it's my fault so I have to clear all amount at a time. Sir, plz help me, what should I do now. I didn't ask them not to deduct EMI. Infact last one year they have been deducting EMI from my salary account. Plz help me.