Product: Checking or savings account

We had a joint checking account ( husband and I ) for over 14 years with Regions bank in XXXX, Indiana. I received a letter in the mail from Regions dated XX/XX/XXXX stating they are closing my account. We tried to call and talk to a representative at Regions. We were told they do not have to disclose the reason why. We then went to the local branch we had been banking at and got the same response. There was plenty of money in the account and we had never had an overdraft on the account. We were told to run a credit check on myself. We did and the credit report was fine. It all started when we went to the bank on XX/XX/XXXX to open a student checking account for our XXXX year old daughter. The bank employee opening the account had trouble adding me as a parent on to the account. She was able to add my husband but continued to have trouble with me. She finally gave up and just put my husband on it and said she would straighten it out later to get me added and would contact me. I never was contacted but then received the letter dated XX/XX/XXXX in the mail sometime later ( I opened it on XX/XX/XXXX ). Consequently, all of our money had been frozen in the account as of XX/XX/XXXX,  electronic bill payments were returned and not paid as we were not aware of the account closing effective XX/XX/XXXX and our direct deposits of our pay checks from our employers would not go through either. This has been a hardship for us. It is unfair to hold our money hostage while Regions profits from holding our money in the meantime. We were told we would receive a check for the balance of the account 10 days after the date of the letter. We were able to get the cashiers check on XX/XX/XXXX for the full amount. We since have closed another joint trust account that was held in my husband 's and his brother 's names from their father 's estate ( this account was not affected as my name was not on the account-they only had a problem with me, not my husband ). Their father recently passed away. We will no longer do business with them at all. If an institution doesn't want to do business with me, I can live with that but I should have the right to know what it is they are basing that decision on. What if my identity has been stolen or there has been fraud committed in my name yet I didn't commit the fraud? I deserve the right to defend myself and clear up the matter. What if it is based on false information? What if it was just a data entry error by the bank employee that was having trouble adding my name to my daughter 's student checking account we were opening? Which this is very likely as everything was fine until after the day we opened that account and had trouble with my name. Regions would not even discuss the issue with us though. They just closed the account as if I am some kind of criminal. Guilty before proven innocent yet no recourse to even plead my case or investigate it. I am not involved in any shady business dealings, drug dealings or anything that would give cause to associate with me. I am an XXXX, gainfully employed. On XX/XX/XXXX we opened a joint checking account at XXXX XXXX  after explaining to that bank employee what had happened to me at Regions. She ran a credit check and XXXX report on me and said everything was ok. We were able to open our joint account. She also said that if XXXX were to decide to close someone's account, they would disclose the reason why. 
I have attached the image of the letter we received and also the image of the cashiers check for the full amount of the content of the account that was closed-in my husband 's name-to prove there was plenty of money in the account.