State Bank Of India [SBI] — transfer amount credited but not showing.

Address:

Cachar, Assam, 788005

I transfered inr 700 in my sbi account on may 3rd 2018. Thought it showed credited to my account but balance was zero! They deducted the money and even transaction for deduction wasn't showing in my account statement. I called they but refused to take the complaint online or over phone! Please help me i am student not a working official. My lien amount though showing balance of 1690