Fnb becoming the worst to bank with

I logged a query about cash that was debitted from my account after i made a payment arrangement with their attorney department. I am disgusted in their service as i was not able to get neccesities my family needs due to an unexpected debit from fnb. I have made a complaint through fnb and worst part its been 5days and no action has been taken with my complaint. I am considering moving both my accounts to another bank as the service is terrible