Proponent Federal Credit Union

My first credit card was through Proponent Federal Credit Union. When I first came to USA, my employer had a relationship with Proponent FCU. Hence Proponent offered me a princely (at that point of time) $ 1000 credit limit even though i did not have any credit history in 2008 in USA (as I was an immigrant).
However, as my credit history improved, I got better credit card offers from banks. Since, reward points were attractive on my Chase Freedom card I used it only at expense of my other credit cards.
However, what disappointed me was that Proponent was the only credit card which charged a $ 10 annual fee. Even their checking account fees were on par with that of banks (which have the reputation of charging high fees). Eventually I zeroed my Proponent Checking A/​c and maintained my Credit Card facility on standby.
Unfortunately, I was just informed that Proponent continued to charge their annual fees and since they did not find any balance in my Checking A/​c, they closed it.
I want to share this feedback with anyone who plans to open a relationship with Proponent so that they can take a well informed decision. Usually people open accounts with Credit Unions because of their superior service and lower fee structure compared to BIG banks.
However, I did not find that to be true in case of Proponent FCU.