Business ProfileforWings Financial

I have been a customer at ********************** since I was in 3rd grade, when I set up my first savings account. When it was time for me to get my first credit card a couple ******* ago, I went to talk to a banker at Wings, as it was my first credit card and I wanted all the information on which was the best one and details of card usage. I applied for the cash back rewards card. When discussing all the ins and outs of a credit card, I was told to simply pay the minimum to help get the cash back. Flash forward to this past March, after a couple of months of not being able to access my online portal for some reason (still haven't been given a reason why), I noticed a few "Interest Charge on Purchases" on my credit card. I had no clue what it was, so I had to ****** it. Turns out, it is a fee for not paying the whole credit card statement. These charges, for the ones I could at least see, added up to over $500. When I called to complain, as I felt like the banker who I had talked to screwed me over (she told me to do this form of payment and never once mentioned the possible fee), I was told a claim would be filed on my behalf to ***** but nothing would probably happen. I right away went to pay off the full amount. The next month, a payment of over $8,000 was made on my card (to pay off my statement). When I called asking why so much was made, the customer representative had no idea how it happened. I was told the only way that I could get that money back was to move it to my savings and that it would happen that Tuesday. It was over a week past that Tuesday the money movement occurred. I then had to also ask about my claim, as nothing had been communicated. I feel so screwed over and feel as if the Credit Union has stolen money because through the whole process, I was not getting clear answers and information was blatantly withheld from me. This is not a way to treat a customer.