NO CUSTOMER PROTECTING!!!!!

I am a Standard bank customer for years. A few days ago after logging on to my cellphone app my account was in a negative with just over R3000. Long story short, turns out that when i swiped my card on the 25th October the money was not taken my from account but i well enough got the sms and that reassured me they money was taken. Standard says there is now nothing they can do and it is my job to check my statement after every transaction to make sure the money goes off my account. With all the bank fees and bank charges you would think they have measures in place to protect paying customers from these awful situations from happening but no! So this will be my last month banking with them :)