Poor Customer Service

It took over a month to receive feedback on 2 ***** cases on my credit card. After countless following up, false promises of receiving feedback or communication I finally received a report that my ***** cases were rejected. I tried to appeal and once again received false promises of being contacted within 24-48 hours. I have also tried to complain internally and unsurprisingly received 0 feedback. I would just like some clarity into why my case was rejected as the second ***** case occurred when I had already cancelled and reported the credit card in question.