State Bank Of India [SBI] — csh wdl in sbi - amount debited by mistake...

Address:

#206, ds max sanskruthi k narayanapura, bangalore

My account was debited csh 20000 what is this i tried to atm withdraw 20000 rupes could not get but debited for my account then reverse atm withdrawal credited to my account 20000 but then CSH WDL debited 20000 rupees, plz tell me that what is csh wdl and plz help to get my 20000 rupees back.