Nonexistent online bank security

I have been experiencing random deductions in my bank account. Recently I bought two items online. The items were delivered. This morning two unauthorised large deductions were made with full description of my previous online purchase. I am trying to call the bank and am not succeeding. They are experiencing high call volumes. My only option is to talk to a consultant but the phone rings until it hangs up on its own. I am very frustrated and need money for my own use. Now my life has to stop because my account has been emptied.

What is worse is that we are charged a fee to cancel transactions that the bank was responsible to secure. No. You must stop charging us for stopping ********** transactions. Please address this matter immediately without affecting me emotionally.