Banks driving me crazy in many ways

I rarely have some experience about bank. I'm not math person. My father always said, "You never borrow money and never lend money. Not only you must save money, you must save it at the bank when you have some money." My father is honest man, I just respect him. So, I did during whole my life time before I moved in here. For me, banks meant trustworthy place. 

But My fantasy of  banks have been breaking since I've got information about banks from my husband who is math person since I've married. In Canada, I've used BMO debit card, we've got house mortgage from Scotia bank and one more bank account we've had. My husband tends to share and decide with me about important banks things but I couldn't remember what I heard even though I tried. Maybe.., I could discriminate which is better or not. It's just too complicated for me to remember... It drive me crazy! 

One day, My husband told me, he gave banks a piece of his mind because they didn't give us some money what we suppose to be back. They always responded to be sorry for their mistake but that's all. It still happens sometimes. It's not surprise to me anymore. When it happened I thought, I'm not able to find what's wrong for that and it probably pour money down the drain. I just felt like they were ripping us off. Is there nobody except math and smart person in the world, isn't it? Everybody need the money and almost people work hard for making money. People borrow the money for buying the house to live. Banks treat that money. It means banks treat a kind of life. That's why banks should try to be more clear, be moral and be better. I'll keep watching.