Bank Of India — please refund

I had tried to withdraw rs. 4000 from syndicate bank atm, transaction was failed i dint recieve the amount but amount was deducted from my account, i have got message to my phone also, i called customer care they asked me to wait for 3 days, issue was happened on 10/12/2018 at around 7pm, i still dint get any refund, so please kindly see through it.