JPMorgan Chase Credit Card Complaint

JPMorgan Chase Credit card department,

Late fee Texas

Asked - Chase credit card company to change date of payment for bill to show up with all my other bills. They said they would do so. Subsequently, I missed timely payment by one day. They had not made the change they said they would. Ask for a refund of late fee + interest. They absolutely will not provide me with a credit. I paid my bill in full minus the penalties + interest and card was canceled plus my points voided. Asked again for balance to be zeroed out. They not only will not do so but they have been incredibly and consistently rude and insulting. I have called -. They will not do anything. They ( Chase Bank USA NA ) are now compounding the penalties and interest. They truly seem to enjoy telling me " there is nothing we can do '' and seem in utter delight to belittle and insult me. ( " You have been previously been informed of our rules, have n't you? '' " I know you 've been refused on this before.. '' for example. ) I do n't understand why they are so interested in generating ill will. I do n't understand this commitment to punish and humiliate a formerly good customer. I would like to hereby issue a formal complaint.