Bajaj Electronics — issue with emi

We bought samsung washing machine on aug 15th in emi for 15 months which starts from sept. We have linked our account details and were told that the money will automatically be deducted. Today a lady called me and said that i have to pay the penalty as the money didn't deduct from the account. She used harsh words and cut the call. I am not sure if she is from bajaj electronics. When i asked her she was saying mind your words, i am not from customer care, i am the connection in between.