Yes Bank — non debit of car loan installment

Sir, i hv taken car loan from yes bank with loan a/c number aln[protected], installment of car loan was not debiting from last three months including this month (May 2020). The date of debit is 02nd of every month. But from last three months the amount is not debiting even i hv sent mails to the bank loan department i'd but i nvr got any reply for my mails. But from last two weeks i'm getting calls from bank that the amount will go into moritorium. I hv informed bank that i haven't applied for any moritorium how cn they change my installment. Even after many repeated messages the bank not even replied to my single message.
It is therefore kindly request you to intervene. It's a clear mistake from bank side and how cn now i clear three months installment at a time