You want to blacklist me

I have been trying for weeks to sort out a payment issue with Edgars. Now they want to black list me for two payments that I have made on the wrong ref (my card number plus my cvv number rather than my account number). I logged a hellopeter complaint against Edcon. They tried calling me once and gave up giving me a reference. I tried calling the number on the response three times this afternoon - at 12:04 held for 4:07 minutes - call dropped. At 13:00 for 3 min - call dropped. At 13:04 for 5 min - call dropped. How is it possible that it is this difficult for you to speak to your customer! I'm going to load another complaint every 5 days until you sort this out. Find someone to assist me please. Urgently.