JPMorgan Chase Credit Card Complaint

JPMorgan Chase Credit card department,

Late fee Florida

So I had an Amazon credit card with chase. Apparently, once you acquire an Amazon card it becomes your default card when you purchase. I made a purchase on the card unknowingly of course so I was late 40 days, which I paid the remaining balance today. I proceeded to ask Chase as to why did no one call me? Their response was well you were late in - for an amount of 8 dollars, which I paid as soon I learned about. Oh we sent an email, they said. To which I replied, brother I have been a loyal customer barely used the card and when I use it I pay it off. Why would you not call me instead of ruining my credit? If you are able to use predictive analysis to know if I am shopping outside my area so Chase does n't loose money why does n't Chase call me? It must be better to charge me the 50 bucks on late fees and ruin my credit so they can charge a higher interest rate. To add insult to injury I was told by various representatives that Chase is not responsible for calling their customers.