Mahindra Finance — Ecs not hitting account regularly

Address:

Pune, Maharashtra, 411043

Respected sir,
My self Ramkrishna Raut I had taken car loan from Mahindra Finance my car number is MH12KN7757 a tourist Toyota etios, my ESC is not hitting my bank account even if I am having enough balance in it.last month ecs worked this month no massage of ecs yet
The month before last month I payed check because of non availability of funds due to demonetisation
The month before that ecs bounced on continues holidays and I was having enough balance in my account at that time
I contacted Mahindra finance swargate pune branch many times but no satisfactory answer,
Why i had to pay fine for nothing
I had given my bank statement stating that i was having enough balance
I contacted my bank of india brach also they cheecked there system and told my account is ecs enabled
I want this problem to be solved and no ome to face this same problem again