Bajaj Finance — debit cmp mandate debit bajaj finance ltd

Yesterday my mother got an SMS from the bank (Your a/c has a debit by transfer of rs.117/-on 14th June 2021). We brought a AC and TV on EMI in 2019 and it deducts from my account, with no due we paid the whole amount. And then why such a deduction? I didn't know what is this for . How can you deduct money from our account without any notification, yeah we give our whole bank details to you which doesn't mean that you can make money from that whenever you want. So I want a refund of the amount 117 or I will go for the further procedure. Even the EMI tenure, is finished and we have the closure certificate, so you are not allowed to take money from my account. Please take necessary action to refund our money and let us know how they can access our account after closure .