Several years ago I had some problems with a bank. I was furious. I deposited 3 checks. Only one got deposited. My bank blamed the originating check bank. Called them and they wouldn't talk to me. I was at a total loss. Then an old friend told me that I was wasting my time trying to deal with rude banking people. The best solution is the banking board. I wrote a letter to the banking board accusing my bank and the originating bank of banking fraud and basically theft of my money and asked for bank audits. I sent the bank board copies of everything. About a month later I received a nasty nasty letter from my bank about how irresponsible I was for contacting the banking board. However, the letter also indicated that the error was found and all money was reinstated to my account. Gosh, that really worked.
Bottom line: Now whenever I talk to any rude or know it all person at any bank about accounts, loans etc. I just remind them we can discuss it on the phone and get it corrected or I can contact the bank board and ask for a complete audit. Their choice. Always seems to calm them down and they seem to get cooperative. JHMO.