Citizens Financial Group, Inc. Credit Card Complaint

Citizens Financial Group, Inc. Credit card department,

Customer service / Customer relations Indiana

I had an issue with a customer service group at the number listed on the back of my credit card. The rep could not resolve my problem, so I asked for a supervisor, which I was given. The supervisor did not resolve my issue. I asked for a manager. She refused to pass me to a manager. She stated she was the highest level of authority I could speak to. I asked for a corporate phone number. That was refused. I was given a physical office address to write and snail mail a complaint to. I contacted directory assistance, and the number listed for that address rings fast busy all day ( on purpose ). I tried the web site. No phone numbers or addresses are listed on the site. I tried their live chat on the site. The representative could only refer me to the original customer service number. I am wondering if my only recourse is to cancel the card. My issue is that despite having had the card with the company for -+ years with an impeccable payment history, each payment over $500.00 has a - day hold placed on it, despite the method of payment. My payments were EFTs, and therefore immediately transferred. The EFTs are also being held. Based on the customer service reps ' responses, it appears they are doing this to all customers. I understand the bank may be concerned with bad checks and are initiating a hold. However, on customers with clean histories? On customers paying by EFT? On all their customers?