from a excellent status to a NOW blacklisted status

How is it possible that you the customer get told or threatened by head office consultants "they will have you black listed" when the branch is at fault.I was paying my account religiously every month. Purchased a sealy bed from Bradlows in promenade, April 2018, bed sagging, springs noisy, had the rep at my home, exchange done, only because of my persistent nagging. Experienced the same thing in Oct 2018, was promised by the store and warehouse, never sorted. Even the regional controller was aware, I was promised acc will be cancelled before Xmas Dec 2018...still not sorted to date...they had to collect bed 16/2/19...still nothing but YET I GET CALLS FROM YOUR HEAD OFFICE ABOUT BLACKLISTING DUE TO NON PAYMENT. IS IT MY FAULT YOUR SERVICE AND QUALITY OF ITEMS HAS GONE DOWN THE TUBES???from a very ****ed off customer, Karen Livesey...hope you guys take ownership because i had enough!