Product: Checking or savings account

I've had an account with Wells Fargo for 9 years and the only bank I have ever been with. I have always had direct deposit, had my credit card with them since XX/XX/XXXX. I've made all of my payments on my credit card on time, paying over the minimal payments and with an excellent credit score. 
On XX/XX/XXXX, my savings account was closed. On XX/XX/XXXX I received a letter in the mail stating they were closing my credit card account with no explanation as to why. I have had my credit card since XXXX of XXXX with NO late payments. On Tuesday of XX/XX/XXXX, I went to a store and used my debit card, and it was declined I looked in my account and I had {$400.00} dollars in my checking account, but my card never went through ( so I thought that was weird ). The next following day XX/XX/XXXX I went on my lunch break and tried using my card again and it was declined again but was saying I had money in my account. I called Wells Fargo XX/XX/XXXX and talked to someone at my local bank and they transferred me over to Loss prevention. I explained everything that was going on as in how my debit card keeps getting declined and mentioned how my savings account was closed and shortly after my credit card account was closed with NO explanation and asked them what is going on? and all they stated to me that " My debit card is on hold and was closing the very next day. It was a business decision, and you have to go up to your local bank and talk to a branching manager for further explanation. '' So on XX/XX/XXXX me and my mother who also have an account with Wells Fargo for over 20 years went up to Wells Fargo and spoke to the Branch manager. I explained to her everything that was going on and if we can go ahead and withdraw my money that was {$400.00}, she looked into my account and told me my account balance was at {$0.00}. The Loss prevention for Wells Frago took all my money out my account where I couldn't withdraw and get my money that I have worked for and the only money I have. As the branch manager, was looking into my account she didn't see anything, no suspicious or anything unusual on my account for them to close everything down. She called Loss prevention and spoke to them. Yet again they had no reason to why they closed all my accounts they just kept saying " It was a business decision to not do business with her anymore. '' and said they are cutting my {$400.00} into a check, and I will receive it in XXXX business days. As if I don't have any bills, or need gas to make it to work, or need any of MY money for a week with NO explanation as to why they have closed all my accounts, and they didn't have any documentation or notes on closing my accounts. I checked my credit score on XXXX XXXX, and it has dropped 39 points. I am highly disappointed in Wells Fargo and how they handled it. The branch manager did what she could do but her hands were tied. My mother also closed all her accounts with them, and we will no longer do business with Wells Fargo, and I will carry the word and my story to others. I wouldn't want anyone else to ever go through this. I also recorded the conversation with the branch manager, and she has also written a complaint against Wells Fargo.