Terrible First National Bank experience

During a getaway the past week, First National Bank unilaterally made a debit order deduction on my account that should have happened on the 1st of September. Trying to phone customer service and resolve the problem, is is virtually impossible, as they are putting you through from one agent to another, eventually cutting you off without the opportunity to solve the problem. This is a continuing problem with Fnb which I experienced before, as they are making it as hard as possible for customers to resolve problems either via phone, secure chat, mail etc. This is very frustrating and of the worst customer services I have ever experienced from a big corporate businesses. I hope they will change their system for the better otherwise they are gonna loose a lot of customers.