Incorrect reporting of interest earned and subsequent TDS by bank

An international bank with which I have an account with since last 14 years misinformed the IT dept. that an interest of Rs. 10267/- was earned by me and subsequently Rs. 1028/- was deducted as tax on it for FY 2016-2017, without informing me. I got to know about it only when the IT dept. raised a concern. I asked the bank to provide the break up information of interest and the TDS. They kept on giving vague answers. I wrote to their India & International CEOs and the matter was sent to the executive escalation desk. Their senior manager called and told me that he will be sending the bifurcation. Finally when I did receive the break up, I saw it was all incorrect as I expected. I again wrote back informing them about their goof up. Finally the senior manager agreed that there was an error on their part and that they will send a rectified for 16A in two weeks time. And all this without even apologizing for their mistake. I would like to sue them for the inconvenience I had to go throug