Product: Credit card or prepaid card

Here 's the most ridiculous story happened to me for my Amazon Store Card at  Synchrony Bank, I strongly recommend XXXX  non-competent bank don't do business to harm and fool the rights of consumers. 

Here 's what happened, there's a checking account I don't keep a lot of balance into, which I used to make payments to the Amazon Store cad, as not a lot of money going on over there, recently I got my new house and there're a lot of things I want to purchase from Amazon, due to I'm so busy recently, for these couple of months, there's are two times I failed to ensure the money in the checking which causing the fail of pulling the funds for payment, I re-submit payment right away using other banks, in general the payment history is perfect, no missing payment at all. In return for this, they closed my account without previous notice, without communicating their rules on rejected payment at all previously. 

This is extremely unreasonable behavior, and all my purchase plan had been screwed up as they refused to re-instate my account, and they need me to re-apply! Does that sounds ridiculous ... I've never heard a big bank with good reputation do things like that as I have so many different credit cards and never had that issue. No communications, just closed your account due to a very XXXX reason, and customer service really bad, nobody is helping. 

I don't understand the fame of Amazon, why they had chosen such a XXXX  bank for business?? Synchrony bank is really ruining the reputation of Amazon, if it's not recommended by Amazon, I won't do any business with such a type of bank, nobody had never heard of if Amazon don't use them. 

Now the key takeaway here is : 1. I don't think it's a really issue at all if you fail to ensure the sufficient funds at the bank to pay, I realized that and make payments using other banks right away. The point is I never missed any payments. 

2. The bank do whatever they want to close your account, they can literally make any rules that nobody had realized before, after the first rejection of the payment, they did not give me any warning at all regarding the possibility of closing the account. They only allow this happen once in a year, twice you are done, nobody can save you, and nobody will warn you about this when the first time, it's like a scheme!! 

3. As a good credit card company as I've went through these so many years, they've done a lot and trying to do more and more for their consumers to win business and win reputation, it's so funny that I see a credit card company couldn't wait to close their customer 's account, if I cost them a million dollars, yes everybody will, but do I? 

4. Due to the customer behavior change, every other credit card company will do more and more to satisfy the customer 's needs, they will even use AI to learn more about your needs to satisfy more, as I got my first new house and I need a lot of tools from Amazon,  an increasing amount of purchase during recent time is very reasonable and understandable, I'm trying to catch up with payments so I'm paying more frequently, but forgot about the insufficient funds as too much stuff going on. They don't offer any solutions other than re-apply. Do you think I'm going to spend my credit again on this bank? 

5. Be aware of store cards run by small banks. Big credit card companies like XXXX or XXXX, if they do things like that, they will lost their business absolutely. Those small banks don't care because they are protected by large retailers to guarantee their business, that does not seem like a good option anymore as those banks are really bad-operated.