Bank — late attendance

Address: Hiranandani Meadows, Thane, Maharashtra, 400610

Dear sir,
I hold account with kotak mahindra bank, thane (West). Branch code is 656 and my a/c number is xxx9437. On 5th december 2019 i went to the branch to update passbook. Branch timing are 9.30 a. M. To 4.30p. M. I went to the bank at 9.56 a. M. Counter clerk came at 10.00 a. M. Late by half an hour. Machine on his table was not working. Finally by 10.00 a. M. My work was done.
I had put my complaint to net banking cell but no response.
Put up for taking with bank.
Thanking you
Ravindra baji