Product: Credit card or prepaid card

I have been a loyal J.P. Morgan Chase customer since I decided to open a credit card while in XXXX  in 2012. I have kept an active checking account and credit card with them ever since, even referring many of my friends and family members to their cards. Then without warning on Monday XX/XX/XXXX they shut down my credit card accounts. I unfortunately found out about this in a very unfortunate way where I was trying to make a purchase at a store and the card was declined. I tried to call in thinking the > {$100.00} charge may have cause fraud protection to kick in and was informed by a machine on the other line that the account had been closed. I tried another Chase card and the same issue happened. Luckily I had my debit card with me and was able to put the purchase on the debit card. I then called into Chase a few days later to be told I was somehow deemed a high risk due to too many recent requests for credit and too many cards. The issue is almost all of my recent requests for credit were with Chase and the only reason I applied for the cards is because Chase kept sending me mailers and emails saying how they have these great bonuses on their cards and I was traveling for work so it made sense to get some of the hotel and airline cards to help build up some points. I started traveling more for work and for my personal company a little over a year ago and recently started a new job where I travel even more so hitting the sign up bonuses were relatively easy and I loved getting the bonus points from using my Chase cards with their partner hotels and airlines. Chase surprisingly kept approving me for new cards with high credit lines that I never utilized ( for the past year or so I've always paid my balance off in full and in my 6 years of owning a credit card have never missed a payment ) and that I never asked for. I feel like now Chase is punishing me for advertisements they put in front of me and for being a responsible card user. I say this because I found a case of another guy who was in a VERY similar situation ( like almost identical situation even down to the cards he had recently applied for ) after reaching out on the internet for help. He had his account closure overturned and it seemed like the only difference after comparing stories is that he carries a balance which I think would make him a higher risk. I also feel a little cheated as Chase issued me 3 cards that I pretty much used daily or weekly and helped make my business expenses a little easier to manage with great cash back cards. I also called in and after telling them this story they jotted down a few notes and after a week where I had no updates I had to call them and was told their decision was final. I feel like if I was a risk Chase shouldn't have approved me for the cards and I feel like this was very much a case of entrapment where they suckered me in with a bunch of flashy ads just to punch me in the gut. To add insult to injury they've continued to send me emails regarding my accounts with advertisements and have charged me an annual fee for a card that was never opened and now my credit score dropped. I want to keep my relationship with Chase but right now I am very angry with how this was handled and feel like theyre cheating and punishing good customers by doing this.